C2115

C2115-DYNAMICS SENSOR SUPPLY VOLTAGE HIGH





For a complete wiring diagram, refer to the wiring information Electrical Diagrams.

- When Monitored:
Upon ignition on, prior to switching the (F941) Dynamics Sensor Supply circuit power on.

- Set Condition:
If the Anti-Lock Brake Module detects a voltage supplied to the Dynamics Sensor greater than 19.5 volts.





1. VERIFY DTC IS ACTIVE
1. Turn the ignition on.
2. With the scan tool, read and record the ABS DTCs.
3. With the scan tool, read and record Environmental Data (EV Data).
4. With the scan tool, erase the ABS DTCs.
5. Cycle the ignition switch.
6. With the scan tool, read the ABS DTCs.

Does this DTC reset?

Yes

- Go To 2

No

- Refer to the ABS INTERMITTENT CONDITION TEST Component Tests and General Diagnostics.

2. INSPECT RELATED WIRING HARNESS, TERMINALS, AND CONNECTORS
1. Turn the ignition off.
2. Check all related wiring for pinched, chafed, pierced, and partially broken wires.
3. Check all related connectors for broken, bent, pushed out, and corroded terminals.

Were any problems found?

Yes

- Repair as necessary.
- Perform ABS VERIFICATION TEST ABS Verification Test.

No

- Go To 3

3. CHECK (F941) DYNAMICS SENSOR SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE




1. Disconnect the Anti-Lock Brakes Module harness connector.
2. Turn the ignition on.
3. Connect volt meter and measure the voltage of the (F941) Dynamics Sensor Supply Circuit and the (Z914) Dynamics Sensor Ground Circuit.

Is the voltage above 19.5 volts?

Yes

- Replace the Dynamics Sensor.
- Perform ABS VERIFICATION TEST ABS Verification Test.

No

- Go To 4

4. CHECK (F941) DYNAMICS SENSOR SUPPLY CIRCUIT FOR OPEN OR HIGH RESISTANCE




1. Turn the ignition off.
2. Disconnect the Anti-Lock Brake Module harness connector.
3. Turn the ignition on.
4. Using a 12-volt test light connected to ground, probe the (F941) Dynamics Sensor Supply circuit.

Does the test light illuminate as brightly as when connected directly to B+?

Yes

- Go To 5

No

- Repair the (F941) Dynamics Sensor Supply circuit for open or high resistance.
- Perform ABS VERIFICATION TEST ABS Verification Test.

5. CHECK (Z914) DYNAMICS SENSOR GROUND CIRCUIT FOR OPEN OR HIGH RESISTANCE




1. Using a 12-volt test light connected to B+, probe the (Z914) Dynamics Sensor Ground circuit.

Does the test light illuminate brightly?

Yes

- Replace the Anti-Lock Brakes Module.
- Perform ABS VERIFICATION TEST ABS Verification Test.

No

- Repair the (Z914) Dynamics Sensor Ground circuit for open or high resistance.
- Perform ABS VERIFICATION TEST ABS Verification Test.