C1462-AWD SWITCH CIRCUIT HIGH
For a complete wiring diagram Refer to Section 8W
- When Monitored:
With the ignition on and no system undervoltage or overvoltage condition present.
- Set Condition:
Transfer Case Selector Switch voltage is greater than a specified voltage for a calibrated amount of time.
| Possible Causes |
| (K77) TRANSFER CASE POSITION SENSOR INPUT CIRCUIT SHORTED TO VOLTAGE |
| TRANSFER CASE SELECTOR SWITCH |
| INSTRUMENT CLUSTER (CCN) |
Diagnostic Test
1. TRANSFER CASE SELECTOR SWITCH VOLTAGE ABOVE 10 VOLTSIgnition on, engine not running.
NOTE: Repair any system undervoltage or overvoltage DTCs that are set in this module before proceeding.
With the scan tool, read the Transfer Case Switch voltage in the CCN.
Is the voltage above 10 volts?
Yes
- Go To 2
No
- Go to 4
2. TRANSFER CASE SELECTOR SWITCH
Turn the ignition off to the lock position
Disconnect the Transfer Case Selector Switch harness connector.
Ignition on, engine not running.
With the scan tool, read the Transfer Case Selector Switch voltage in the CCN.
Is the voltage equal to 0 volts?
Yes
- Replace the Transfer Case Selector Switch.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
No
- Go to 3
3. (K77) TRANSFER CASE POSITION SENSOR INPUT CIRCUIT SHORTED TO VOLTAGE
Turn the ignition off to the lock position
Disconnect the CCN C3 harness connector.
Ignition on, engine not running.
Measure the voltage of the (K77) Transfer Case Position Sensor Input circuit.
Is the voltage above 10 volts?
Yes
- Repair the (K77) Transfer Case Position Sensor Input circuit for a short to voltage.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
No
- Replace the CCN in accordance with the Service Information.
- Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)
4. INTERMITTENT WIRING AND CONNECTORS
The conditions necessary to set this DTC are not present at this time.
Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors.
Look for the data to change or for the DTC to reset during the wiggle test.
While monitoring the scan tool data relative to this circuit, move the selector switch to each position several times.
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-VER 1 (Refer to 21 - TRANSMISSION/TRANSAXLE/TRANSFER CASE - STANDARD PROCEDURE).
No
- Test complete.