C2115

C2115-DYNAMICS SENSOR SUPPLY VOLTAGE HIGH





For a complete wiring diagram Consult Diagrams/Electrical.

- When Monitored:
With the ignition on.

- Set Condition:
When the Anti-Lock Brake Module indicates the operating voltage is out of specified range.





1. CHECK FOR A DTC C2115-DYNAMICS SENSOR SUPPLY VOLTAGE HIGH
NOTE: The Sensor Cluster is the same as the Dynamics Sensor.

NOTE: This DTC must be active for the results of this test to be valid.

Turn the ignition on.
With the scan tool, read and record DTCs.
With the scan tool, read and record Freeze Frame information.
With the scan tool, erase DTCs.
Cycle the ignition from off to on.
With the scan tool, read and record DTCs.
Does the scan tool display: C2115-DYNAMICS SENSOR SUPPLY VOLTAGE HIGH?

Yes

- Go To 2

No

- Perform the ABS Intermittent Condition diagnostic procedure. Component Tests and General Diagnostics

2. CHECK THE WIRING HARNESS, TERMINALS, AND CONNECTORS
Turn ignition off.
Check all related wiring for bruised, chafed, pierced, or partially broken wires.
Check all related connectors for broken, bent, pushed out, or corroded terminals.
Were any problems found?

Yes

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

No

- Go To 3

3. CHECK THE VOLTAGE ON THE (G4) DYNAMICS SENSOR SUPPLY CIRCUIT




WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in personal injury or death.

Disconnect the Dynamics Sensor harness connector.
Start the engine.
Raise engine speed above 1800 RPM.
Measure the voltage of the (G4) Dynamics Sensor Supply Circuit.
Is the voltage above 17 volts?

Yes

- Go To 4

No

- Go To 7

4. CHECK THE VOLTAGE ON THE FUSED B(+) CIRCUITS




WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts, or fan. Do not wear loose clothing. Failure to follow these instructions can result in personal injury or death.

Turn the ignition off.
Disconnect the Anti-Lock Brake Module harness connector.
Start the engine.
Raise engine speed above 1800 RPM.
Measure the voltage of the (A200) Fused B(+) circuit.
Is the voltage above 17 volts?

Yes

- Refer to appropriate Service Information for Charging System testing and repair.
- Perform ABS VERIFICATION TEST. ABS Verification Test

No

- Go To 5

5. (G4) DYNAMICS SENSOR SUPPLY CIRCUIT SHORT TO GROUND




Turn the ignition off.
Measure the resistance between ground and the (G4) Dynamics Sensor Supply circuit.
Is the resistance below 5.0 ohms?

Yes

- Repair the (G4) Dynamics Sensor Supply circuit for a short to ground.
- Perform ABS VERIFICATION TEST. ABS Verification Test

No

- Go To 6

6. (G4) DYNAMICS SENSOR SUPPLY CIRCUIT SHORT TO VOLTAGE




Turn the ignition on.
Measure the voltage of the (G4) Dynamics Sensor Supply circuit.
Is there any voltage present?

Yes

- Repair the (G4) Dynamics Sensor Supply circuit for a short to voltage.
- Perform ABS VERIFICATION TEST. ABS Verification Test

No

- Go To 7

7. DYNAMICS SENSOR




Turn the ignition off.
If necessary, disconnect the Dynamics Sensor harness connector.
If necessary, connect the Anti-Lock Brake Module harness connector.
Measure the resistance between the (G94) Dynamics Sensor Ground Circuit at the Dynamics Sensor harness connector and ground.
Is the resistance below 5.0 ohms?

Yes

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

No

- Go To 8

8. (G94) DYNAMICS SENSOR GROUND CIRCUIT SHORT TO VOLTAGE




Turn the ignition on.
Measure the voltage of the (G94) Dynamics Sensor Ground circuit.
Is there any voltage present?

Yes

- Repair the (G94) Dynamics Sensor Ground circuit for a short to voltage.
- Perform ABS VERIFICATION TEST. ABS Verification Test

No

- Go To 9

9. (G94) DYNAMICS SENSOR GROUND CIRCUIT OPEN




Turn the ignition off.
Measure the resistance of the (G94) Dynamics Sensor Ground circuit
Is the resistance below 5.0 ohms?

Yes

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

No

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