C2110-11

C2110-11-SENSOR SUPPLY 1 VOLTAGE - CIRCUIT SHORT TO GROUND





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 below 2.5 volts for 300 mS.





1. DRIVETRAIN 5 VOLT SUPPLY (REFERENCE) VOLTAGE BELOW 4.8 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 below 4.8 volts?

Yes

- Go To 2

No

- Go To 4

2. TRANSFER CASE ENCODER
1. Turn the ignition off to the lock position
2. Disconnect the Transfer Case Motor/Encoder harness connector.
3. Ignition on, engine not running.
4. With the scan tool, read the 5-volt Supply (Reference) Voltage.

Is the voltage above 4.75 volts with the Transfer Case Motor harness disconnected?

Yes

- Replace the Transfer Case Encoder. .
- Perform the TRANSFER CASE VERIFICATION TEST. .

No

- Go To 3

3. (K504) DRIVETRAIN 5 VOLT SUPPLY CIRCUIT SHORT TO GROUND




1. Turn the ignition off to the lock position
2. Disconnect the DTCM C1 harness connector.
3. Measure the resistance between ground and the (K504) Drivetrain 5- volt Supply circuit at the Transfer Case Motor harness connector.

Is the resistance below 5.0 Ohms?

Yes

- Repair the (K504) Drivetrain 5 Volt Supply circuit for a short to ground.
- Perform the TRANSFER CASE VERIFICATION TEST. .

No

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

4. INTERMITTENT WIRING AND CONNECTORS
1. Using the wiring diagram/schematic as a guide, inspect the wiring harness and connectors.
2. Wiggle test the wiring harness and connectors while monitoring the scan tool data relative to this circuit.
3. Look for the data to change or for the DTC to reset during the wiggle test.
4. While monitoring the scan tool data relative to this circuit, move the selector switch to each position several times.
5. Look for the data to change other than as expected or for the DTC to reset.

Were any problems found?

Yes

- Repair as necessary.
- Perform the TRANSFER CASE VERIFICATION TEST. .

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time.