C2114

C2114-DYNAMICS SENSOR SUPPLY VOLTAGE LOW





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 C2114-DYNAMICS SENSOR SUPPLY VOLTAGE LOW
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: C2114-DYNAMICS SENSOR SUPPLY VOLTAGE LOW?

Yes

- Go To 2

No

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

2. CHECK THE DYNAMICS SENSOR OUTPUT
Make sure vehicle is on level ground.

CAUTION: Ensure brake capability is available before road testing.

Have an assistant test drive the vehicle while monitoring the Dynamics Sensor operation.
With scan tool read Lateral Sensor Signal, should display ± 0.3 G and the Yaw Sensor between ± 9°.
Drive vehicle and graph sensor while making sweeping left and right turns, left turns reading increases and right turns reading decreases and look for signal noise.
Were the readings within range and correspond accordingly?

Yes

- Go To 3

No

- Go To 6

3. CHECK THE WIRING HARNESS, TERMINALS, AND CONNECTORS
Check the Dynamics Sensor installation and torque of the mounting bolts.
Visually inspect the related wiring harness. Look for any bruised, chafed, pierced, or partially broken wires.
Visually inspect the related wiring harness connectors. Look 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 4

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




Turn the ignition off.
Disconnect the Dynamics Sensor harness connector.
Turn the ignition on.
Measure the voltage of the (G4) Dynamics Sensor Supply Circuit.
Is the voltage above 10 volts?

Yes

- Go To 5

No

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

5. CHECK THE RESISTANCE BETWEEN THE (G94) DYNAMICS SENSOR GROUND CIRCUIT AND GROUND




Turn the ignition off.
Disconnect the Dynamics Sensor harness connector.
Measure the resistance between the (G94) Dynamics Sensor Ground Circuit and Ground.
Is the resistance below 5.0 ohm?

Yes

- Go To 7

No

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

6. CHECK THE DYNAMICS SENSOR INSTALLATION
NOTE: Dynamics Sensor installation and mounting bolt torque is critical for proper operation.

Check the Dynamics Sensor for damaged, modified or bent mounting bracket.
Check the Dynamics Sensor mounting bolts for loose or over tighten mounting bolts.
Were any problems found?

Yes

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

No

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

7. DYNAMICS SENSOR
Replace the Dynamics Sensor.
Perform ABS VERIFICATION TEST. ABS Verification Test

CAUTION: Ensure brake capability is available before road testing.

Road test the vehicle.
With the scan tool, read ABS DTCs.
Did DTC C2114-DYNAMICS SENSOR SUPPLY VOLTAGE LOW reset?

Yes

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

No

- Test Complete.