Pinpoint Test G: The Yellow Abs Warning Indicator Is Never/Always On
WARNING: This page is about a different car, the 2004 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.
Test Step
G1 CHECK THE YELLOW ABS WARNING INDICATOR OPERATION
- Key in OFF position.
- Disconnect: Traction Control Module C135.
- Key in ON position.
- Observe the yellow ABS warning indicator.
- Is the yellow ABS warning indicator illuminated?
Result / Action to Take
Yes
Go to G2.
No
Go to G4.
Test Step
G2 CHECK THE YELLOW ABS WARNING INDICATOR
- Key in OFF position.
- Connect a fused (5A) jumper wire between the traction control module C135 pin 44, circuit 31S-CF28 (BK/RD), harness side and ground.
- Key in ON position.
- Is the yellow ABS warning indicator illuminated?
Result / Action to Take
Yes
Go to G3.
No
INSTALL a new HCU. REFER to ANTI-LOCK CONTROL . REPEAT the self-test. TEST the system for normal operation.
Test Step
G3 CHECK CIRCUIT 31S-CF28 (BK/RD) FOR AN OPEN
- Key in OFF position.
- Disconnect: Instrument Cluster C220a.
- Measure the resistance between the traction control module C135 pin 44, circuit 31S-CF28 (BK/RD), harness side and the instrument cluster C220a pin 6, circuit 31S -CF28 (BK/RD), harness side.
- Is the resistance less than 5 ohms?
Result / Action to Take
Yes
REFER to INSTRUMENT CLUSTER .
No
REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.
Test Step
G4 CHECK CIRCUIT 31S-CF38 (BK/RD) FOR A SHORT TO GROUND
- Key in OFF position.
- Disconnect: Instrument Cluster C220a.
- Measure the resistance between the traction control module C135 pin 44, circuit 31S-CF28 (BK/RD) harness side and ground.
- Is the resistance greater than 10,000 ohms?
Result / Action to Take
Yes
REFER to INSTRUMENT CLUSTER .
No
REPAIR the circuit. CLEAR the DTCs. REPEAT the self-test. TEST the system for normal operation.