B210B-SYSTEM VOLTAGE HIGH
For a complete wiring diagram, refer to the Wiring Information.
 |
-
When Monitored:
Ignition key in the run position.
-
Set Condition:
The Sentry Key remote Entry Module (SKREEM) also known as the Wireless Control Module (WCM) has detected the system voltage above 16 volts.
Possible Causes |
|---|
| FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT |
| WIRELESS CONTROL MODULE (WCM)/SENTRY KEY REMOTE ENTRY MODULE (SKREEM) |
1. DETERMINING IF DIAGNOSTIC TROUBLE CODE (DTC) IS CURRENT
| NOTE: | Diagnose any related Powertrain DTCs before continuing. |
| 1. | With a scan tool, read and record DTCs. |
| 2. | With the scan tool, clear DTCs. |
| 3. | Perform 5 ignition cycles, leaving the ignition switch on for a minimum of 90 seconds per cycle. |
| 4. | Using the scan tool, read DTCs. |
Does the DTC reset?
Yes
- Go To 3
No
- Go to 2
| NOTE: | Check for any of the follow conditions: |
| 1. | With the ignition on, wiggle the related wires. |
| 2. | Using a scan tool, read DTCs. |
Does the DTC reset?
Yes
- Repair the wiring as necessary.
- Perform the WCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Wireless Control (WCM) - Standard Procedure)
No
DTC is not active at this time. Test complete.
3. FUSED IGNITION SWITCH OUTPUT (RUN-START) CIRCUIT SHORTED TO BATTERY VOLTAGE
| NOTE: | A dirty (partial) ground can cause abnormal conditions within a system. Ensure the module has a good ground before continuing. |
| 1. | Turn the ignition off. |
| 2. | Disconnect the WCM harness connector. |
| 3. | Using a 12 volt test light connected to ground, probe the Fused Ignition Switch Output (Run-Start) circuit in the WCM harness connector. |
Does the test light illuminate brightly?
Yes
- Repair the Fused Ignition Switch Output (Run-Start) circuit for a short to voltage.
- Perform the WCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Wireless Control (WCM) - Standard Procedure)
No
- Replace and reprogram the Wireless Control Module in accordance with the Service Information.
- Perform the WCM VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Wireless Control (WCM) - Standard Procedure)