B2103

B2103-SYSTEM VOLTAGE HIGH

For a complete wiring diagram Consult Diagrams/Electrical

- When Monitored:
Continuously.

- Set Condition:
If the voltage to the Steering Column Module (SCM) is above 16.5 volts for more than one minute.





Diagnostic Test

1. RELATED DTC(S) PRESENT IN THE PCM
Ignition on, engine not running.
With the scan tool, select View DTCs in the Powertrain Control Module.
Are there any charging system or related battery voltage DTCs present in the PCM?

Yes

- Refer to the appropriate diagnostic information.

No

- Go to 2

2. DTC IS ACTIVE
Start the engine. Allow the engine to idle for 2 minutes.
With the scan tool, select View DTCs in the Steering Column Module.
Is the DTC status Active at this time?

Yes

- Go to 3

No

- Go to 6

3. (A108) FUSED B(+) CIRCUIT HIGH RESISTANCE




Turn the ignition off.
Disconnect the Steering Column Module harness connector.
Turn the ignition on.
Using a 12-volt test light connected to ground, check the (A108) Fused B(+) circuit in the Steering Column Module harness connector.

NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery.

Does the test light illuminate brightly?

Yes

- Go to 4

No

- Repair the high resistance in the (A108) Fused B(+) circuit.

4. (Z907) GROUND CIRCUIT HIGH RESISTANCE




Using a 12-volt test light connected to 12-volts, check the (Z907) Ground circuit in the Steering Column Module harness connector.

NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery.

Does the test light illuminate brightly?

Yes

- Go To 5

No

- Repair the high resistance in the (Z907) Ground circuit.

5. STEERING COLUMN MODULE (SCM)
View repair.


Repair

- Replace the Steering Column Module (SCM).

6. INTERMITTENT BATTERY VOLTAGE HIGH DTC
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.
Were any problems found?

Yes

- Repair as necessary.

No

- Test complete.