C2112

C2112-SENSOR SUPPLY 1 VOLTAGE CIRCUIT HIGH

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





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





Diagnostic Test

1. VERIFY THE DTC IS ACTIVE
1. Ignition on, engine not running.
2. With a scan tool, read DTCs.

Is the DTC active at this time?

Yes

- Go To 2

No

- Go To 4

2. 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 3

No

- Go To 4

3. (K504) DRIVETRAIN 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE
1. Turn the ignition off to the lock position
2. Disconnect the Transfer Case Shift Motor/Mode Sensor Assembly harness connector.
3. Disconnect the DTCM C1 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 the DTCM VERIFICATION TEST. DTCM Verification Test.

No

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

4. INTERMITTENT WIRING AND CONNECTORS
1. The conditions necessary to set this DTC are not present at this time.
2. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.
3. Wiggle test the wiring harness and connectors while checking for shorted and open circuits.
4. Using the scan tool, 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 the DTCM VERIFICATION TEST. DTCM Verification Test.

No

- Test Complete.