C2112

C2112-SENSOR SUPPLY 1 VOLTAGE CIRCUIT HIGH





For a complete wiring diagram, refer to the Wiring Information.

- When Monitored:
With the ignition on and no system undervoltage or overvoltage condition present.

- Set Condition:
The Drive Train Control Module (DTCM) detects that the Drivetrain Sensor Supply voltage is above 7.5 volts for 300 ms





1. 5 VOLT SUPPLY (REFERENCE) VOLTAGE IS ABOVE 5.2 VOLTS
1. Ignition on, engine not running.
2. With the scan tool, read the Drivetrain 5-volt supply (reference) voltage in the DTCM.

Is the voltage above 5.2 volts?

Yes

- Go To 2

No

- Go To 3

2. (K504) DRIVETRAIN 5 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE




1. Turn the ignition off to the lock position
2. Disconnect the Transfer Case Motor C2 harness connector.
3. Disconnect the DTCM harness connector.
4. Ignition on, engine not running.
5. Measure the voltage of the (K504) Drivetrain 5 Volt Supply circuit at DTCM harness connector.

Is there any voltage present?

Yes

- Repair the (K504) Drivetrain 5 Volt Supply circuit for a short to voltage.
- Perform DTCM VERIFICATION TEST. DTCM Verification Test.

No

- Replace the Drive Train Control Module (DTCM).
- Perform DTCM VERIFICATION TEST. DTCM Verification Test.

3. INTERMITTENT WIRING HARNESS AND CONNECTORS
1. The conditions necessary to set this DTC are not present at this time.
2. Using the wiring diagram/schematic as a guide, inspect the wiring harness and connectors.
3. Wiggle test the wiring harness and connectors while monitoring the scan tool data relative to this circuit.
4. Look for the data to change or for the DTC to reset during the wiggle test.

Were any problems found?

Yes

- Repair as necessary.
- Perform DTCM VERIFICATION TEST. DTCM Verification Test.

No

- Test complete.