Test Description
NOTE:
Test numbers refer to numbers on diagnostic chart. Use only 10-megohm (minimum) DVOM for all voltage and resistance tests.
- Checks if Code 16 is also set as current or history. If Code 16 is present, proceed to that chart first.
- Verifies if malfunction is currently present.
- Verifies ABS enable relay can be turned on and provide voltage to EBCM.
- Checks for high resistance in switched battery input circuit from ABS enable relay to EBCM.
- Checks for high resistance in switched battery circuit from battery to ABS enable relay.
- Verifies condition of ABS enable relay.
- Checks for poor terminal contact or corrosion at connectors.
- Determines if EBCM is the cause of malfunction.
- Checks for high resistance in entire relay coil circuit.
- Verifies proper battery condition.
- Verifies proper voltage is available at ABS enable relay.
- Checks for an open in switched battery input circuit from relay to EBCM.
- Verifies condition of ABS enable relay.
- Checks for proper resistance of relay coil.
- Checks for high resistance in ABS enable relay control circuit between ABS enable relay and EBCM.
- Checks for high resistance in ABS enable relay control circuit between battery and ABS enable relay.