Hello,

My name is Tim from Holland and i'm looking for some help for my friend who owns a power wagon. Power wagons are very rare in Holland and therefor he can not seek help from a garage.

After a test drive the power wagon broke down and my friend replaced the engine with a new one. After this he has problems with the front axle. The electronic lock doesn't seem to work. When they read it through a scanner the code displayed is C1450. Visually there doesn't seem to be a problem. Also the current/voltage is the same as on the rear axle (5 ohm/volt).

You might have guest i am not a mechanic only a messenger.

I hope you can give my friend some advice so he can start to enjoy his power wagon.

many thanks in advance.

Greetings from Holland

 

Hi and welcome to a fellow European.
See your PM's for some advice.
Good luck.
Al.

 

first up

All the pertinent info is needed, year, engine package, tranny. Weedaho has the FSM for free download.

 

The car is a Dodge Ram 2500 Power Wagon Crew Cab with a 5.7L Hemi from the year 2005.

The error code given is C1450 which should a front axle error.

Here i have a couple of photo's



The error showing on the dash



The third light from the left (to right) is flashing (FR/RR).



The voltage measured on the wires is 5v this is the seam as the rear axle. Is that the right voltage?

I hope this helps for you to help my friend.

Many thanks.

 

C1450 Front Differential Position Sensor Circuit High

Is what I see.

All I can find online is this:

http://www.vipertruckregistry.com/sc...R-SM-Part1.pdf

Specifically Page 214 (just search for the term C1450 and you will get there)

Looks like its a problem with the stabilizer bar.

There are steps in that link that should help you.

hope that might help?

 

Here is the written diagnost from the 2005 FSM, unfortutunately, the pinouts don't come with the copy, I STRONGLY SUGGEST, downloading the FSM---its free---from Weedahoe, in his sig, this FSM---it will take you step by step through the diagnostics, to get you up and running again



C1450-FRONT DIFFERENTIAL POSITION SENSOR CIRCUIT HIGH (CONTINUED)

For a complete wiring diagram

²

Ignition on. Axle Locker Switch in the FR/RR position.

²

The FDCM detects that the Front Differential Position Sensor is shorted to voltage.

Possible Causes

(T522) FRONT LOCKER SENSOR SENSE SHORTED TO BATTERY VOLTAGE
FRONT DIFFERENTIAL POSITION SENSOR
(T522) FRONT LOCKER SENSOR SENSE OPEN
(T522) FRONT LOCKER SENSOR SENSE SHORTED TO (T521) LOCKER SENSOR SUPPLY
FDCM

Diagnostic Test

1.

Ignition on, engine not running.
With the DRBIII

Is the DTC active at this time?
Yes

No

2.

Turn the ignition off.
Disconnect the Front Locker Solenoid harness connector.
Disconnect the FDCM harness connector.
Turn the ignition on.
Measure the voltage on the (T522) Front Locker Sensor Sense circuit
in the FDCM harness connector.

Does the voltmeter indicate voltage present?
Yes

No

DR/DH

DIFFERENTIAL & DRIVELINE - ELECTRICAL DIAGNOSTICS 3 - 47

C1450-FRONT DIFFERENTIAL POSITION SENSOR CIRCUIT HIGH (CONTINUED)

3.

Turn the ignition off.
Connect the FDCM harness connector.
Ignition on, engine not running.
Using a jumper wire, jumper across from the (T522) Front Locker Sensor Sense circuit and the (T521) Locker Sensor
Supply circuit in the Front Locker Solenoid harness connector.
While monitoring the sensor state on the DRBIII

Does the state change on the DRBIII

No

4.

Turn the ignition off.
Disconnect the FDCM harness connector.
Measure the resistance of the (T522) Front Locker Sensor Sense circuit
between the Front Locker Solenoid harness connector and the
FDCM harness connector.

Is the resistance below 5.0 ohms?
Yes

No

3 - 48 DIFFERENTIAL & DRIVELINE - ELECTRICAL DIAGNOSTICS

DR/DH

C1450-FRONT DIFFERENTIAL POSITION SENSOR CIRCUIT HIGH (CONTINUED)

5.

Measure the resistance between the (T522) Front Locker Sensor
Sense circuit and the (T521) Locker Sensor Supply circuit in the
FDCM harness connector.

Is the resistance below 5.0 ohms?
Yes

No

6.

Using the schematics as a guide, inspect the wire harness and connectors. Pay particular attention to all Power and
Ground circuits.

Were there any problems found?
Yes

No

7.

The conditions necessary to set this DTC are not present at this time.
Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
Wiggle test the wiring harness and connectors while checking for shorted and open circuits.
Using the DRBIII

Were there any problems found?
Yes

No >> Test Complete.

 

that's what I posted a link to... hope he is able to fix it with that info

 

I would almost be willing to bet that what is happening is a wire was pinched during the engine change out, and now, the control module is seeing a direct short to sensor, causing a higher than expected voltage back to the module------in other words, look for a damaged wire.

Just my best guess with out any hands on.

 

I know this dosent help but Is your 4x4 on the floor and Diff lock is electric?