Dodge Ram Truck 1500-2500-3500. Manual — part 61
C2310-STABILIZER/DIFFERENTIAL INDICATOR SUPPLY CIRCUIT LOW
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DIFFERENTIAL & DRIVELINE - ELECTRICAL DIAGNOSTICS
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C2310-STABILIZER/DIFFERENTIAL INDICATOR SUPPLY CIRCUIT LOW (CONTINUED)
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
Ignition on.
•
Set Condition:
The FDCM sense an the voltage on the Switch Supply circuit is low.
Possible Causes
DISCONNECTING STABILIZER SWITCH
ALXE LOCKER SWITCH
(T536) SWITCH SUPPLY CIRCUIT SHORTED TO GROUND
(T532,T533 or T534) LOCKER ILLUMINATION SENSE CIRCUIT SHORTED TO GROUND
FDCM
1.
DTC ACTIVE
CAUTION: Before removing the FDCM harness connector, clean the connector and locking cam area of dirt
and debris. Failure to do so can result in the connector being jammed or damage to the locking cams on
the harness connector or module. Do not force the assist arm when releasing or installing the harness con-
nector.
Turn the ignition on, engine not running
With the DRBIII
T
, read FDCM DTC(s).
Is the DTC active at this time?
Yes
>> Go To 2
No
>> Go To 6
2.
AXLE LOCKER SWITCH OPERATION
NOTE: Before continuing with the below diagnostic test, ensure
the FDCM harness connector seal is installed correctly. Inspect
the terminals on both harness connector and the module for
damage. Failure to do so can result in misdiagnoses of the sys-
tem.
NOTE: If set along with this DTC, diagnostic any Stabilizer Select
Switch DTC(s) first before continuing.
Turn the ignition off.
Disconnect the Axle Locker Switch harness connector.
Turn the ignition on.
Measure the voltage on the (T536) Switch Supply circuit in the Axle
Locker Switch harness connector.
Is the voltage 12 volts?
Yes
>> Go To 4
No
>> Go To 3
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DIFFERENTIAL & DRIVELINE - ELECTRICAL DIAGNOSTICS
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C2310-STABILIZER/DIFFERENTIAL INDICATOR SUPPLY CIRCUIT LOW (CONTINUED)
3.
DISCONNECTING STABILIZER SWITCH
With the voltmeter still on the Switch Supply terminal in the Axle
Locker Switch, disconnect the Disconnecting Stabilizer Switch.
Monitor the voltage on the voltmeter.
Is the voltage 12 volts?
Yes
>> Replace the Disconnecting Stabilizer Bar Switch
Perform FDCM VERIFICATION TEST.
No
>> Repair the short to ground in the (T536) Switch Supply cir-
cuit.
Perform FDCM VERIFICATION TEST.
4.
AXLE LOCKER SWITCH
Using a test light connected to battery voltage, probe the (T532) Locker Open Illumination Sense circuit in the Axle
Locker Switch harness connector.
With the DRBIII
T
, select System Test and actuate the Locker Open Illumination LED. Select the blinking option.
NOTE: Repeat the above test for the (T533) Locker Rear Illumination Sense circuit terminal and (T534)
Locker FR/RR Illumination Sense circuit one at a time.
Does the test light illuminate and flash on and off at each circuit?
Yes
>> Go to 5
No
>> Replace the Axle Locker Switch.
Perform FDCM VERIFICATION TEST.
5.
(T532, T533 or T534) LOCKER ILLUMINATION SENSE CIRCUIT SHORTED TO GROUND
Disconnect the Axle Locker Switch harness connector.
Measure the resistance of each of the following circuit at the FDCM harness connector to ground.
•
(T532) Locker Open Illumination Sense circuit
•
(T533) Locker Rear Illumination Sense circuit
•
(T534) Locker FR/RR Illumination Sense circuit
Does the ohmmeter read below 100 ohms for any of the above circuit checks?
Yes
>> Repair the short to ground in the Illumination Sense circuit that indicated the resistance reading below
100 ohms.
Perform FDCM VERIFICATION TEST.
No
>> Replace the FDCM in accordance with the Service Information.Perform FDCM VERIFICATION TEST.
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DIFFERENTIAL & DRIVELINE - ELECTRICAL DIAGNOSTICS
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C2310-STABILIZER/DIFFERENTIAL INDICATOR SUPPLY CIRCUIT LOW (CONTINUED)
6.
INTERMITTENT WIRING AND CONNECTORS
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
T
, monitor the data related to this circuit while performing the wiggle test. Look for the data to
change or for the DTC to reset.
Were there any problems found?
Yes
>> Repair as necessary.
Perform TRANSFER CASE VERIFICATION TEST.
No
>> Test Complete.
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