C211F-BATTERY SUPPLY VOLTAGE HIGH
For a complete wiring diagram Refer to Section 8W
- When Monitored:
Continuously.
- Set Condition:
The All Wheel Drive (AWD) Control Module detects that the Fused Battery (+) circuit voltage is above 17.0 volts for more than 10 seconds.
| Possible Causes |
| (A923) FUSED B+ CIRCUIT |
| CHARGING SYSTEM DTCS PRESENT |
| ALL WHEEL DRIVE (AWD) CONTROL MODULE |
| TOTALLY INTEGRATED POWER MODULE (TIPM) |
Diagnostic Test
1. CHARGING SYSTEM DTCS PRESENTIgnition on, engine not running.
With the scan tool, select View DTCs in the Powertrain Control Module.
Are there any Charging System or related voltage DTCs present?
Yes
- Refer to the symptom list and perform any Charging System DTC diagnostic procedures before continuing with this test.
No
- Go to 2
2. CHECK FOR ACTIVE DTC
NOTE: Leave the ignition on for 15 seconds.
With the scan tool, select View DTCs.
Is the DTC active at this time?
Yes
- Go to 3
No
- Go to 6
3. CHECK THE TIPM FUSED B+ VOLTAGE
While back probing, measure the voltage of the (A923) Fused B+ circuit in the TIPM C7 harness connector.
Is the voltage below 17 volts?
Yes
- Go to 4
No
- Go to 5
4. AWD CONTROL MODULE
NOTE: Before continuing, check the AWD Module harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary.
Using the schematics as a guide, inspect the wire harness and connectors.
Pay particular attention to all Power and Ground circuits.
View repair.
Repair
- Replace the AWD Control Module in accordance with the Service information.
- Perform AWD Control Module VERIFICATION TEST. (Refer to 3 - DIFFERENTIAL & DRIVELINE/ELECTRONICALLY CONTROLLED CLUTCH - STANDARD PROCEDURE).
5. TOTALLY INTEGRATED POWER MODULE
NOTE: Before continuing, check the TIPM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary.
Using the schematics as a guide, inspect the wire harness and connectors.
Pay particular attention to all Power and Ground circuits.
View repair.
Repair
- Replace the Totally Integrated Power Module in accordance with the Service Information.
- Perform AWD Control Module VERIFICATION TEST. (Refer to 3 - DIFFERENTIAL & DRIVELINE/ELECTRONICALLY CONTROLLED CLUTCH - STANDARD PROCEDURE).
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 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 any problems found?
Yes
- Repair as necessary.
- Perform AWD Control Module VERIFICATION TEST. (Refer to 3 - DIFFERENTIAL & DRIVELINE/ELECTRONICALLY CONTROLLED CLUTCH - STANDARD PROCEDURE).
No
- Test complete.