C1038–REAR WHEEL SPEED SENSOR CIRCUIT LOW
For a complete wiring diagram Refer to Section 8W.
- When Monitored:
With the ignition on.
- Set Condition:
When the Right Rear Wheel Speed Sensor circuit fails the diagnostic test.
| Possible Causes |
| WIRING HARNESS, TERMINAL, CONNECTOR DAMAGE |
| (B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUIT SHORTED TO GROUND, OR OPEN |
| (B1) RIGHT REAR WSS SIGNAL CIRCUIT SHORTED TO GROUND, OR OPEN |
| RIGHT REAR WSS |
| TOTALLY INTEGRATED POWER MODULE |
Diagnostic Test
1.CHECK FOR DTC C1038–REAR WHEEL SPEED SENSOR CIRCUIT LOWNOTE: This DTC must be active for the results of this test to be valid.
Does the scan tool display: C1038–REAR WHEEL SPEED SENSOR CIRCUIT LOW active?
Yes
- Go To 2
No
- The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.
- Refer to the ABS-INTERMITTENT CONDITION TEST. (Refer to 5 - BRAKES - DIAGNOSIS AND TESTING)
2.CHECK CONNECTOR/TERMINAL FOR DAMAGE
NOTE: Check all terminals for broken, bent, pushed out, or corroded terminals.
Is the Right Rear WSS or any of the connectors/terminals damaged?
Yes
- Repair as necessary.
- Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
- Go To 3
3.CHECK (B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUIT VOLTAGE
Is the voltage above 10.0 volts?
Yes
- Go To 6
No
- Go To 4
4.CHECK (B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUIT FOR A SHORT TO GROUND
Does the test light illuminate brightly?
Yes
- Repair the (B2) Right Rear WSS Supply circuit for a short to ground.
- Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
- Go To 5
5.CHECK (B2) RIGHT REAR WSS 12 VOLT SUPPLY CIRCUIT FOR AN OPEN
Does the test light illuminate brightly?
Yes
- Replace the TIPM in accordance with the Service Information.
- Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
- Repair the (B2) Right Rear WSS Supply circuit for an open.
- Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
6.CHECK (B1) RIGHT REAR WSS SIGNAL CIRCUIT FOR A SHORT TO GROUND
Does the test light illuminate brightly?
Yes
- Repair the (B1) Right Rear WSS Signal circuit for a short to ground.
- Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
- Go To 7
7.CHECK (B1) RIGHT REAR WSS SIGNAL CIRCUIT FOR AN OPEN
Does the test light illuminate brightly?
Yes
- Go To 8
No
- Repair the (B1) Right Rear WSS Signal circuit for an open.
- Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
8.RIGHT REAR WHEEL SPEED SENSOR
(Refer to 5 - BRAKES - STANDARD PROCEDURE)
WARNING: To avoid personal injury or death, check brake capability is available before road testing.
Did DTC C1038–REAR WHEEL SPEED SENSOR CIRCUIT LOW reset?
Yes
- Replace the TIPM in accordance with the Service Information.
- Perform ABS VERIFICATION TEST. (Refer to 5 - BRAKES - STANDARD PROCEDURE).
No
- Test Complete.