Spark, but no spark!
#11
07-31-2013, 11:20 PM
Join Date: Apr 2007
Location: Near Sacramento,ca
Posts: 11,599
Likes: 0
Received 96 Likes
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81 Posts
Continue
TEST ACTION APPLICABILITY
23 Turn the ignition off.
Warning: The fuel system is under a constant pressure (even with the engine
off). Before testing or servicing any fuel system hose, fitting or line, the fuel
system pressure must be released.
Disconnect the fuel supply line at the fuel rail.
Connect fuel line adapter #6539(5/169) or #6631(3/89) to the disconnected fuel supply
line. Insert the other end of the adapter into a graduated container.
Caution: Do not operate the fuel pump for more than 7 seconds in the next
step. Fuel pump module reservoir may run empty and damage to the fuel
pump will result.
Note: Specification: A good fuel pump will deliver at least 1/4 liter (1/2 pint)
of fuel in 7 seconds.
Turn the ignition on.
With the DRB, actuate the ASD Fuel System test for 7 seconds.
Is the fuel pump capacity within specification?
All
Yes ® Test Complete.
No ® Check for a kinked/damaged fuel supply line between the fuel
tank and fuel rail. If OK, replace the fuel pump module.
Caution: Stop all actuations.
24 Turn the ignition off.
Disconnect the fuel pump module connector.
Note: Check connectors - It is critical that the connector is free from any
signs of corrosion or deformities - Clean/repair as necessary.
Using an ohmmeter, measure the fuel pump ground circuit at the fuel pump module
connector.
Is the resistance below 5.0 ohms?
All
Yes ® Go To 25
No ® Repair the open fuel pump ground circuit.
Perform Powertrain Verification Test VER-1.
25 Turn the ignition off.
Disconnect the fuel pump module connector.
Note: Check connectors - It is critical that the connector is free from any
signs of corrosion or deformities - Clean/repair as necessary.
Turn the ignition on.
With the DRB, actuate the ASD Fuel System test.
Using a 12 volt test light connected to ground, check the fuel pump relay output
circuit at the fuel pump module connector.
Does the test light illuminate brightly?
All
Yes ® Go To 26
No ® Go To 27
Caution: Stop all actuations.
26 If there are no possible causes remaining, replace the Fuel Pump Module.
View repair options.
All
Repair
Replace the Fuel Pump Module.
Perform the Powertrain Verification Test - Ver 1.
272
STARTING
*ENGINE CRANKS DOES NOT START — ContinuedTEST ACTION APPLICABILITY
23 Turn the ignition off.
Warning: The fuel system is under a constant pressure (even with the engine
off). Before testing or servicing any fuel system hose, fitting or line, the fuel
system pressure must be released.
Disconnect the fuel supply line at the fuel rail.
Connect fuel line adapter #6539(5/169) or #6631(3/89) to the disconnected fuel supply
line. Insert the other end of the adapter into a graduated container.
Caution: Do not operate the fuel pump for more than 7 seconds in the next
step. Fuel pump module reservoir may run empty and damage to the fuel
pump will result.
Note: Specification: A good fuel pump will deliver at least 1/4 liter (1/2 pint)
of fuel in 7 seconds.
Turn the ignition on.
With the DRB, actuate the ASD Fuel System test for 7 seconds.
Is the fuel pump capacity within specification?
All
Yes ® Test Complete.
No ® Check for a kinked/damaged fuel supply line between the fuel
tank and fuel rail. If OK, replace the fuel pump module.
Caution: Stop all actuations.
24 Turn the ignition off.
Disconnect the fuel pump module connector.
Note: Check connectors - It is critical that the connector is free from any
signs of corrosion or deformities - Clean/repair as necessary.
Using an ohmmeter, measure the fuel pump ground circuit at the fuel pump module
connector.
Is the resistance below 5.0 ohms?
All
Yes ® Go To 25
No ® Repair the open fuel pump ground circuit.
Perform Powertrain Verification Test VER-1.
25 Turn the ignition off.
Disconnect the fuel pump module connector.
Note: Check connectors - It is critical that the connector is free from any
signs of corrosion or deformities - Clean/repair as necessary.
Turn the ignition on.
With the DRB, actuate the ASD Fuel System test.
Using a 12 volt test light connected to ground, check the fuel pump relay output
circuit at the fuel pump module connector.
Does the test light illuminate brightly?
All
Yes ® Go To 26
No ® Go To 27
Caution: Stop all actuations.
26 If there are no possible causes remaining, replace the Fuel Pump Module.
View repair options.
All
Repair
Replace the Fuel Pump Module.
Perform the Powertrain Verification Test - Ver 1.
272
STARTING
*ENGINE CRANKS DOES NOT START — Continued
TEST ACTION APPLICABILITY
27 Turn the ignition off.
Remove the fuel pump relay from the PDC.
Note: Check connectors - It is critical that the connector is free from any
signs of corrosion or deformities - Clean/repair as necessary.
With a 12 volt test light connected to ground (B-), check the fuel pump relay fused B+
circuit.
Does the test light illuminate brightly?
All
Yes ® Go To 28
No ® Repair the open/high resistance in the fused B+ circuit. NOTE:
Check fuel pump fuse in PDC for open.
Perform the Powertrain Verification Test - Ver 1.
28 Turn the ignition off.
Remove the fuel pump relay from the PDC.
Disconnect the fuel pump module connector.
Note: Check connectors - It is critical that the connector is free from any
signs of corrosion or deformities - Clean/repair as necessary.
Using an ohmmeter, measure the fuel pump relay output circuit from the relay
connector to the fuel pump module connector.
Is the resistance below 5.0 ohms?
All
Yes ® Go To 29
No ® Repair the open fuel pump relay output circuit.
Perform Powertrain Verification Test VER-1.
29 If there are no possible causes remaining, replace the Fuel Pump Relay.
View repair options.
All
Repair
Replace the fuel pump relay.
Perform the Powertrain Verification Test - Ver 1.
273
STARTING
*ENGINE CRANKS DOES NOT START — ContinuedTEST ACTION APPLICABILITY
27 Turn the ignition off.
Remove the fuel pump relay from the PDC.
Note: Check connectors - It is critical that the connector is free from any
signs of corrosion or deformities - Clean/repair as necessary.
With a 12 volt test light connected to ground (B-), check the fuel pump relay fused B+
circuit.
Does the test light illuminate brightly?
All
Yes ® Go To 28
No ® Repair the open/high resistance in the fused B+ circuit. NOTE:
Check fuel pump fuse in PDC for open.
Perform the Powertrain Verification Test - Ver 1.
28 Turn the ignition off.
Remove the fuel pump relay from the PDC.
Disconnect the fuel pump module connector.
Note: Check connectors - It is critical that the connector is free from any
signs of corrosion or deformities - Clean/repair as necessary.
Using an ohmmeter, measure the fuel pump relay output circuit from the relay
connector to the fuel pump module connector.
Is the resistance below 5.0 ohms?
All
Yes ® Go To 29
No ® Repair the open fuel pump relay output circuit.
Perform Powertrain Verification Test VER-1.
29 If there are no possible causes remaining, replace the Fuel Pump Relay.
View repair options.
All
Repair
Replace the fuel pump relay.
Perform the Powertrain Verification Test - Ver 1.
273
STARTING
TEST ACTION APPLICABILITY
23 Turn the ignition off.
Warning: The fuel system is under a constant pressure (even with the engine
off). Before testing or servicing any fuel system hose, fitting or line, the fuel
system pressure must be released.
Disconnect the fuel supply line at the fuel rail.
Connect fuel line adapter #6539(5/169) or #6631(3/89) to the disconnected fuel supply
line. Insert the other end of the adapter into a graduated container.
Caution: Do not operate the fuel pump for more than 7 seconds in the next
step. Fuel pump module reservoir may run empty and damage to the fuel
pump will result.
Note: Specification: A good fuel pump will deliver at least 1/4 liter (1/2 pint)
of fuel in 7 seconds.
Turn the ignition on.
With the DRB, actuate the ASD Fuel System test for 7 seconds.
Is the fuel pump capacity within specification?
All
Yes ® Test Complete.
No ® Check for a kinked/damaged fuel supply line between the fuel
tank and fuel rail. If OK, replace the fuel pump module.
Caution: Stop all actuations.
24 Turn the ignition off.
Disconnect the fuel pump module connector.
Note: Check connectors - It is critical that the connector is free from any
signs of corrosion or deformities - Clean/repair as necessary.
Using an ohmmeter, measure the fuel pump ground circuit at the fuel pump module
connector.
Is the resistance below 5.0 ohms?
All
Yes ® Go To 25
No ® Repair the open fuel pump ground circuit.
Perform Powertrain Verification Test VER-1.
25 Turn the ignition off.
Disconnect the fuel pump module connector.
Note: Check connectors - It is critical that the connector is free from any
signs of corrosion or deformities - Clean/repair as necessary.
Turn the ignition on.
With the DRB, actuate the ASD Fuel System test.
Using a 12 volt test light connected to ground, check the fuel pump relay output
circuit at the fuel pump module connector.
Does the test light illuminate brightly?
All
Yes ® Go To 26
No ® Go To 27
Caution: Stop all actuations.
26 If there are no possible causes remaining, replace the Fuel Pump Module.
View repair options.
All
Repair
Replace the Fuel Pump Module.
Perform the Powertrain Verification Test - Ver 1.
272
STARTING
*ENGINE CRANKS DOES NOT START — ContinuedTEST ACTION APPLICABILITY
23 Turn the ignition off.
Warning: The fuel system is under a constant pressure (even with the engine
off). Before testing or servicing any fuel system hose, fitting or line, the fuel
system pressure must be released.
Disconnect the fuel supply line at the fuel rail.
Connect fuel line adapter #6539(5/169) or #6631(3/89) to the disconnected fuel supply
line. Insert the other end of the adapter into a graduated container.
Caution: Do not operate the fuel pump for more than 7 seconds in the next
step. Fuel pump module reservoir may run empty and damage to the fuel
pump will result.
Note: Specification: A good fuel pump will deliver at least 1/4 liter (1/2 pint)
of fuel in 7 seconds.
Turn the ignition on.
With the DRB, actuate the ASD Fuel System test for 7 seconds.
Is the fuel pump capacity within specification?
All
Yes ® Test Complete.
No ® Check for a kinked/damaged fuel supply line between the fuel
tank and fuel rail. If OK, replace the fuel pump module.
Caution: Stop all actuations.
24 Turn the ignition off.
Disconnect the fuel pump module connector.
Note: Check connectors - It is critical that the connector is free from any
signs of corrosion or deformities - Clean/repair as necessary.
Using an ohmmeter, measure the fuel pump ground circuit at the fuel pump module
connector.
Is the resistance below 5.0 ohms?
All
Yes ® Go To 25
No ® Repair the open fuel pump ground circuit.
Perform Powertrain Verification Test VER-1.
25 Turn the ignition off.
Disconnect the fuel pump module connector.
Note: Check connectors - It is critical that the connector is free from any
signs of corrosion or deformities - Clean/repair as necessary.
Turn the ignition on.
With the DRB, actuate the ASD Fuel System test.
Using a 12 volt test light connected to ground, check the fuel pump relay output
circuit at the fuel pump module connector.
Does the test light illuminate brightly?
All
Yes ® Go To 26
No ® Go To 27
Caution: Stop all actuations.
26 If there are no possible causes remaining, replace the Fuel Pump Module.
View repair options.
All
Repair
Replace the Fuel Pump Module.
Perform the Powertrain Verification Test - Ver 1.
272
STARTING
*ENGINE CRANKS DOES NOT START — Continued
TEST ACTION APPLICABILITY
27 Turn the ignition off.
Remove the fuel pump relay from the PDC.
Note: Check connectors - It is critical that the connector is free from any
signs of corrosion or deformities - Clean/repair as necessary.
With a 12 volt test light connected to ground (B-), check the fuel pump relay fused B+
circuit.
Does the test light illuminate brightly?
All
Yes ® Go To 28
No ® Repair the open/high resistance in the fused B+ circuit. NOTE:
Check fuel pump fuse in PDC for open.
Perform the Powertrain Verification Test - Ver 1.
28 Turn the ignition off.
Remove the fuel pump relay from the PDC.
Disconnect the fuel pump module connector.
Note: Check connectors - It is critical that the connector is free from any
signs of corrosion or deformities - Clean/repair as necessary.
Using an ohmmeter, measure the fuel pump relay output circuit from the relay
connector to the fuel pump module connector.
Is the resistance below 5.0 ohms?
All
Yes ® Go To 29
No ® Repair the open fuel pump relay output circuit.
Perform Powertrain Verification Test VER-1.
29 If there are no possible causes remaining, replace the Fuel Pump Relay.
View repair options.
All
Repair
Replace the fuel pump relay.
Perform the Powertrain Verification Test - Ver 1.
273
STARTING
*ENGINE CRANKS DOES NOT START — ContinuedTEST ACTION APPLICABILITY
27 Turn the ignition off.
Remove the fuel pump relay from the PDC.
Note: Check connectors - It is critical that the connector is free from any
signs of corrosion or deformities - Clean/repair as necessary.
With a 12 volt test light connected to ground (B-), check the fuel pump relay fused B+
circuit.
Does the test light illuminate brightly?
All
Yes ® Go To 28
No ® Repair the open/high resistance in the fused B+ circuit. NOTE:
Check fuel pump fuse in PDC for open.
Perform the Powertrain Verification Test - Ver 1.
28 Turn the ignition off.
Remove the fuel pump relay from the PDC.
Disconnect the fuel pump module connector.
Note: Check connectors - It is critical that the connector is free from any
signs of corrosion or deformities - Clean/repair as necessary.
Using an ohmmeter, measure the fuel pump relay output circuit from the relay
connector to the fuel pump module connector.
Is the resistance below 5.0 ohms?
All
Yes ® Go To 29
No ® Repair the open fuel pump relay output circuit.
Perform Powertrain Verification Test VER-1.
29 If there are no possible causes remaining, replace the Fuel Pump Relay.
View repair options.
All
Repair
Replace the fuel pump relay.
Perform the Powertrain Verification Test - Ver 1.
273
STARTING
#12
07-31-2013, 11:25 PM
Join Date: Apr 2007
Location: Near Sacramento,ca
Posts: 11,599
Likes: 0
Received 96 Likes
on
81 Posts
P1282 code.
Symptom:
P1282-FUEL PUMP RELAY CONTROL CIRCUIT
When Monitored and Set Condition:
P1282-FUEL PUMP RELAY CONTROL CIRCUIT
When Monitored: With the ignition on and battery voltage above 10.4 volts.
Set Condition: An open or shorted condition is detected in the fuel pump relay control
circuit.
POSSIBLE CAUSES
FUEL PUMP RELAY WIRING HARNESS OBSERVABLE
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
FUEL PUMP RELAY
FUEL PUMP RELAY CONTROL CIRCUIT OPEN
FUEL PUMP RELAY CONTROL CIRCUIT SHORTED TO GROUND
FUEL PUMP RELAY WIRING HARNESS INTERMITTENT
POWERTRAIN CONTROL MODULE
TEST ACTION APPLICABILITY
1 Turn ignition on.
With the DRB, actuate the Fuel Pump Relay.
Is the Fuel Pump Relay clicking?
All
Yes ® Go To 2
No ® Go To 4
2 Turn ignition off.
Using the wiring diagram as a guide, inspect the fuel pump relay wiring and
connectors.
Were any problems found?
All
Yes ® Repair as necessary.
Perform the Powertrain Verification Test - Ver 2.
No ® Go To 3
3 Turn ignition on.
With the DRB, actuate the Fuel Pump Relay.
Wiggle the wiring harness from the Fuel Pump Relay to the PCM while the relay is
actuating.
Did the Relay clicking stop or become irregular when wiggling the wires?
All
Yes ® Repair Circuit as necessary where wiggling caused clicking to
stop or become irregular.
Perform the Powertrain Verification Test - Ver 2.
No ® Test Complete.
184
DRIVEABILITYSymptom:
P1282-FUEL PUMP RELAY CONTROL CIRCUIT
When Monitored and Set Condition:
P1282-FUEL PUMP RELAY CONTROL CIRCUIT
When Monitored: With the ignition on and battery voltage above 10.4 volts.
Set Condition: An open or shorted condition is detected in the fuel pump relay control
circuit.
POSSIBLE CAUSES
FUEL PUMP RELAY WIRING HARNESS OBSERVABLE
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
FUEL PUMP RELAY
FUEL PUMP RELAY CONTROL CIRCUIT OPEN
FUEL PUMP RELAY CONTROL CIRCUIT SHORTED TO GROUND
FUEL PUMP RELAY WIRING HARNESS INTERMITTENT
POWERTRAIN CONTROL MODULE
TEST ACTION APPLICABILITY
1 Turn ignition on.
With the DRB, actuate the Fuel Pump Relay.
Is the Fuel Pump Relay clicking?
All
Yes ® Go To 2
No ® Go To 4
2 Turn ignition off.
Using the wiring diagram as a guide, inspect the fuel pump relay wiring and
connectors.
Were any problems found?
All
Yes ® Repair as necessary.
Perform the Powertrain Verification Test - Ver 2.
No ® Go To 3
3 Turn ignition on.
With the DRB, actuate the Fuel Pump Relay.
Wiggle the wiring harness from the Fuel Pump Relay to the PCM while the relay is
actuating.
Did the Relay clicking stop or become irregular when wiggling the wires?
All
Yes ® Repair Circuit as necessary where wiggling caused clicking to
stop or become irregular.
Perform the Powertrain Verification Test - Ver 2.
No ® Test Complete.
184
TEST ACTION APPLICABILITY
4 Turn ignition off.
Remove the fuel pump relay from the PDC.
Note: Check connectors - Clean/repair as necessary.
Turn the ignition on.
Using a voltmeter, measure the fused ignition switch output circuit at the fuel pump
relay connector.
Is the voltage above 10.0 volts?
All
Yes ® Go To 5
No ® Repair the open fused ignition switch output circuit. NOTE:
Check for a blown fuse.
Perform the Powertrain Verification Test - Ver 2
5 Turn ignition off.
Remove the fuel pump relay.
Note: Check connectors - Clean/repair as necessary.
Using an ohmmeter, measure the resistance between terminals 1 (85) and 2 (86) of
the fuel pump relay.
Is the resistance between 50 and 90 ohms?
All
Yes ® Go To 6
No ® Replace the fuel pump relay.
Perform the Powertrain Verification Test - Ver 2
6 Turn ignition off.
Remove the fuel pump relay from the PDC.
Disconnect the Powertrain Control Module connectors.
Note: Check connectors - Clean/repair as necessary.
Using an ohmmeter, measure the fuel pump relay control circuit from the fuel pump
relay connector to the PCM connector.
Is the resistance below 5.0 ohms?
All
Yes ® Go To 7
No ® Repair the open fuel pump relay control circuit.
Perform the Powertrain Verification Test - Ver 2
7 Turn ignition off.
Remove the fuel pump relay from the PDC.
Disconnect the Powertrain Control Module connectors.
Note: Check connectors - Clean/repair as necessary.
Using an ohmmeter, measure the resistance between the fuel pump relay control
circuit and ground.
Is the resistance below 5.0 ohms?
All
Yes ® Repair the fuel pump relay control circuit for a short to ground.
Perform the Powertrain Verification Test - Ver 2
No ® Go To 8
8 If there are no possible causes remaining, replace the Powertrain Control Module.
View repair options.
All
Repair
Replace the Powertrain Control Module.
Perform the Powertrain Verification Test - Ver 2
185
DRIVEABILITY
P1282-FUEL PUMP RELAY CONTROL CIRCUIT — ContinuedTEST ACTION APPLICABILITY
4 Turn ignition off.
Remove the fuel pump relay from the PDC.
Note: Check connectors - Clean/repair as necessary.
Turn the ignition on.
Using a voltmeter, measure the fused ignition switch output circuit at the fuel pump
relay connector.
Is the voltage above 10.0 volts?
All
Yes ® Go To 5
No ® Repair the open fused ignition switch output circuit. NOTE:
Check for a blown fuse.
Perform the Powertrain Verification Test - Ver 2
5 Turn ignition off.
Remove the fuel pump relay.
Note: Check connectors - Clean/repair as necessary.
Using an ohmmeter, measure the resistance between terminals 1 (85) and 2 (86) of
the fuel pump relay.
Is the resistance between 50 and 90 ohms?
All
Yes ® Go To 6
No ® Replace the fuel pump relay.
Perform the Powertrain Verification Test - Ver 2
6 Turn ignition off.
Remove the fuel pump relay from the PDC.
Disconnect the Powertrain Control Module connectors.
Note: Check connectors - Clean/repair as necessary.
Using an ohmmeter, measure the fuel pump relay control circuit from the fuel pump
relay connector to the PCM connector.
Is the resistance below 5.0 ohms?
All
Yes ® Go To 7
No ® Repair the open fuel pump relay control circuit.
Perform the Powertrain Verification Test - Ver 2
7 Turn ignition off.
Remove the fuel pump relay from the PDC.
Disconnect the Powertrain Control Module connectors.
Note: Check connectors - Clean/repair as necessary.
Using an ohmmeter, measure the resistance between the fuel pump relay control
circuit and ground.
Is the resistance below 5.0 ohms?
All
Yes ® Repair the fuel pump relay control circuit for a short to ground.
Perform the Powertrain Verification Test - Ver 2
No ® Go To 8
8 If there are no possible causes remaining, replace the Powertrain Control Module.
View repair options.
All
Repair
Replace the Powertrain Control Module.
Perform the Powertrain Verification Test - Ver 2
185
DRIVEABILITY
P1282-FUEL PUMP RELAY CONTROL CIRCUIT
Symptom:
P1282-FUEL PUMP RELAY CONTROL CIRCUIT
When Monitored and Set Condition:
P1282-FUEL PUMP RELAY CONTROL CIRCUIT
When Monitored: With the ignition on and battery voltage above 10.4 volts.
Set Condition: An open or shorted condition is detected in the fuel pump relay control
circuit.
POSSIBLE CAUSES
FUEL PUMP RELAY WIRING HARNESS OBSERVABLE
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
FUEL PUMP RELAY
FUEL PUMP RELAY CONTROL CIRCUIT OPEN
FUEL PUMP RELAY CONTROL CIRCUIT SHORTED TO GROUND
FUEL PUMP RELAY WIRING HARNESS INTERMITTENT
POWERTRAIN CONTROL MODULE
TEST ACTION APPLICABILITY
1 Turn ignition on.
With the DRB, actuate the Fuel Pump Relay.
Is the Fuel Pump Relay clicking?
All
Yes ® Go To 2
No ® Go To 4
2 Turn ignition off.
Using the wiring diagram as a guide, inspect the fuel pump relay wiring and
connectors.
Were any problems found?
All
Yes ® Repair as necessary.
Perform the Powertrain Verification Test - Ver 2.
No ® Go To 3
3 Turn ignition on.
With the DRB, actuate the Fuel Pump Relay.
Wiggle the wiring harness from the Fuel Pump Relay to the PCM while the relay is
actuating.
Did the Relay clicking stop or become irregular when wiggling the wires?
All
Yes ® Repair Circuit as necessary where wiggling caused clicking to
stop or become irregular.
Perform the Powertrain Verification Test - Ver 2.
No ® Test Complete.
184
DRIVEABILITYSymptom:
P1282-FUEL PUMP RELAY CONTROL CIRCUIT
When Monitored and Set Condition:
P1282-FUEL PUMP RELAY CONTROL CIRCUIT
When Monitored: With the ignition on and battery voltage above 10.4 volts.
Set Condition: An open or shorted condition is detected in the fuel pump relay control
circuit.
POSSIBLE CAUSES
FUEL PUMP RELAY WIRING HARNESS OBSERVABLE
FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN
FUEL PUMP RELAY
FUEL PUMP RELAY CONTROL CIRCUIT OPEN
FUEL PUMP RELAY CONTROL CIRCUIT SHORTED TO GROUND
FUEL PUMP RELAY WIRING HARNESS INTERMITTENT
POWERTRAIN CONTROL MODULE
TEST ACTION APPLICABILITY
1 Turn ignition on.
With the DRB, actuate the Fuel Pump Relay.
Is the Fuel Pump Relay clicking?
All
Yes ® Go To 2
No ® Go To 4
2 Turn ignition off.
Using the wiring diagram as a guide, inspect the fuel pump relay wiring and
connectors.
Were any problems found?
All
Yes ® Repair as necessary.
Perform the Powertrain Verification Test - Ver 2.
No ® Go To 3
3 Turn ignition on.
With the DRB, actuate the Fuel Pump Relay.
Wiggle the wiring harness from the Fuel Pump Relay to the PCM while the relay is
actuating.
Did the Relay clicking stop or become irregular when wiggling the wires?
All
Yes ® Repair Circuit as necessary where wiggling caused clicking to
stop or become irregular.
Perform the Powertrain Verification Test - Ver 2.
No ® Test Complete.
184
TEST ACTION APPLICABILITY
4 Turn ignition off.
Remove the fuel pump relay from the PDC.
Note: Check connectors - Clean/repair as necessary.
Turn the ignition on.
Using a voltmeter, measure the fused ignition switch output circuit at the fuel pump
relay connector.
Is the voltage above 10.0 volts?
All
Yes ® Go To 5
No ® Repair the open fused ignition switch output circuit. NOTE:
Check for a blown fuse.
Perform the Powertrain Verification Test - Ver 2
5 Turn ignition off.
Remove the fuel pump relay.
Note: Check connectors - Clean/repair as necessary.
Using an ohmmeter, measure the resistance between terminals 1 (85) and 2 (86) of
the fuel pump relay.
Is the resistance between 50 and 90 ohms?
All
Yes ® Go To 6
No ® Replace the fuel pump relay.
Perform the Powertrain Verification Test - Ver 2
6 Turn ignition off.
Remove the fuel pump relay from the PDC.
Disconnect the Powertrain Control Module connectors.
Note: Check connectors - Clean/repair as necessary.
Using an ohmmeter, measure the fuel pump relay control circuit from the fuel pump
relay connector to the PCM connector.
Is the resistance below 5.0 ohms?
All
Yes ® Go To 7
No ® Repair the open fuel pump relay control circuit.
Perform the Powertrain Verification Test - Ver 2
7 Turn ignition off.
Remove the fuel pump relay from the PDC.
Disconnect the Powertrain Control Module connectors.
Note: Check connectors - Clean/repair as necessary.
Using an ohmmeter, measure the resistance between the fuel pump relay control
circuit and ground.
Is the resistance below 5.0 ohms?
All
Yes ® Repair the fuel pump relay control circuit for a short to ground.
Perform the Powertrain Verification Test - Ver 2
No ® Go To 8
8 If there are no possible causes remaining, replace the Powertrain Control Module.
View repair options.
All
Repair
Replace the Powertrain Control Module.
Perform the Powertrain Verification Test - Ver 2
185
DRIVEABILITY
P1282-FUEL PUMP RELAY CONTROL CIRCUIT — ContinuedTEST ACTION APPLICABILITY
4 Turn ignition off.
Remove the fuel pump relay from the PDC.
Note: Check connectors - Clean/repair as necessary.
Turn the ignition on.
Using a voltmeter, measure the fused ignition switch output circuit at the fuel pump
relay connector.
Is the voltage above 10.0 volts?
All
Yes ® Go To 5
No ® Repair the open fused ignition switch output circuit. NOTE:
Check for a blown fuse.
Perform the Powertrain Verification Test - Ver 2
5 Turn ignition off.
Remove the fuel pump relay.
Note: Check connectors - Clean/repair as necessary.
Using an ohmmeter, measure the resistance between terminals 1 (85) and 2 (86) of
the fuel pump relay.
Is the resistance between 50 and 90 ohms?
All
Yes ® Go To 6
No ® Replace the fuel pump relay.
Perform the Powertrain Verification Test - Ver 2
6 Turn ignition off.
Remove the fuel pump relay from the PDC.
Disconnect the Powertrain Control Module connectors.
Note: Check connectors - Clean/repair as necessary.
Using an ohmmeter, measure the fuel pump relay control circuit from the fuel pump
relay connector to the PCM connector.
Is the resistance below 5.0 ohms?
All
Yes ® Go To 7
No ® Repair the open fuel pump relay control circuit.
Perform the Powertrain Verification Test - Ver 2
7 Turn ignition off.
Remove the fuel pump relay from the PDC.
Disconnect the Powertrain Control Module connectors.
Note: Check connectors - Clean/repair as necessary.
Using an ohmmeter, measure the resistance between the fuel pump relay control
circuit and ground.
Is the resistance below 5.0 ohms?
All
Yes ® Repair the fuel pump relay control circuit for a short to ground.
Perform the Powertrain Verification Test - Ver 2
No ® Go To 8
8 If there are no possible causes remaining, replace the Powertrain Control Module.
View repair options.
All
Repair
Replace the Powertrain Control Module.
Perform the Powertrain Verification Test - Ver 2
185
DRIVEABILITY
P1282-FUEL PUMP RELAY CONTROL CIRCUIT
#13
08-02-2013, 09:05 AM
yea, i do have spark coming off the top of the coil, but no spark going to the plugs. in this test, it told me to replace the cap and rotor, which i did. but still no go. bummer
could there be something else mechanically wrong with the distributor?
if its a WEAK coil pack, could that be a cause?
can anybody answer to the question of, "if i have 10v going to the coil pack while cranking, does that rule out either a crank or a cam position sensor, or both?"
thank you all for you help!
could there be something else mechanically wrong with the distributor?
if its a WEAK coil pack, could that be a cause?
can anybody answer to the question of, "if i have 10v going to the coil pack while cranking, does that rule out either a crank or a cam position sensor, or both?"
thank you all for you help!