2004 3.7 Dakota, No bus no crank
#1
2004 3.7 Dakota, No bus no crank
The truck randomly shut off as I was driving.
- No gauges work
- No bus on odometer
- Does not crank
- I've checked all fuses and relays, starter cranks if relay is jumped, fuel pump works if relay is jumped, jumping the ASD does nothing.
replaced camshaft postion sensor.
- all grounds on PCM pins get 12v
- unplugged Crank, Cam, MAP, TPS, Oil presure sensors, made no difference.
Cam plug outer pins get 5v, 4.90-5v, middle ground pin gets 12v
I get the same voltages for Crank, TPS sensors.
I could get the MAP sensor off, it looks melted, so i cut the wires, still no bus no crank. MAP wires get 5v, 12v ground, 4.90-5v signal.
- No gauges work
- No bus on odometer
- Does not crank
- I've checked all fuses and relays, starter cranks if relay is jumped, fuel pump works if relay is jumped, jumping the ASD does nothing.
replaced camshaft postion sensor.
- all grounds on PCM pins get 12v
- unplugged Crank, Cam, MAP, TPS, Oil presure sensors, made no difference.
Cam plug outer pins get 5v, 4.90-5v, middle ground pin gets 12v
I get the same voltages for Crank, TPS sensors.
I could get the MAP sensor off, it looks melted, so i cut the wires, still no bus no crank. MAP wires get 5v, 12v ground, 4.90-5v signal.
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