C2114

C2114-DYNAMICS SENSOR SUPPLY VOLTAGE LOW





For a complete wiring diagram Refer to Diagrams/Electrical. Diagrams By Number


- When Monitored:

With the ignition on.

- Set Condition:

If the Dynamics Sensor status changes from initialized to not initialized due to low voltage on the (G4) Dynamics Sensor Supply circuit.







1. VERIFY DTC IS ACTIVE

Turn the ignition on.

With the scan tool, read and record ABS DTCs.

With the scan tool, read and record Environmental Data (EV Data).

With the scan tool, erase ABS DTCs.

Cycle the ignition switch.

With the scan tool, read ABS DTCs.

Does this DTC reset?

Yes

- Go To 2

No

- Perform the ABS Intermittent Condition diagnostic procedure. Testing and Inspection
- Perform ABS VERIFICATION TEST. ABS Verification Test


2. INSPECT RELATED WIRING HARNESS, TERMINALS, & CONNECTORS

Turn the ignition off.

Check all related wiring for pinched, chafed, pierced, and partially broken wires.

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 (G4) DYNAMICS SENSOR SUPPLY CIRCUIT & (G94) DYNAMICS SENSOR GROUND CIRCUIT FUNCTION





Disconnect the Dynamics Sensor harness connector.

Turn the ignition on.

Measure the voltage between the (G4) Dynamics Sensor Supply Circuit and the (G94) Dynamics Sensor Ground Circuit.

Is the voltage above 10.5 volts?

Yes

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

No

- Go To 4


4. CHECK (G4) DYNAMICS SENSOR SUPPLY CIRCUIT FOR HIGH RESISTANCE





Turn the ignition off.

Disconnect the Anti-Lock Brakes Module harness connector.

Measure the resistance of the (G4) Dynamics Sensor Supply circuit between the Dynamics Sensor harness connector and the Anti-Lock Brakes Module harness connector.

Is the resistance below 5.0 ohms?

Yes

- Go To 5

No

- Repair the (G4) Dynamics Sensor Supply circuit for high resistance.
- Perform ABS VERIFICATION TEST. ABS Verification Test


5. CHECK (G94) DYNAMICS SENSOR GROUND CIRCUIT FOR HIGH RESISTANCE





Measure the resistance of the (G94) Dynamics Sensor Ground circuit between the Dynamics Sensor harness connector and the Anti-Lock Brakes Module harness connector.

Is the resistance below 5.0 ohms?

Yes

- Go To 6

No

- Repair the (G94) Dynamics Sensor Ground circuit for high resistance.
- Perform ABS VERIFICATION TEST. ABS Verification Test


6. CHECK (G4) DYNAMICS SENSOR SUPPLY CIRCUIT FOR A SHORT TO OTHER ABS CIRCUITS





Measure the resistance between the (G4) Dynamics Sensor Supply circuit and the B46, B15, D21, D65, D64, Z127, D52, D51, G94, B6, B7, B4. B3, B1, B2, B9, B8, and Z107 circuit in the Anti-Lock Brakes Module harness connector.

Is the resistance below 10k ohms on any of the circuits?

Yes

- Repair all circuits with a resistance below 10k ohms for a short to the (G4) Dynamics Sensor Supply circuit.
- Perform ABS VERIFICATION TEST. ABS Verification Test

No

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