DTC 13

DTC 13: ABS Operation Signal Circuit Problem
1. Reset the MCM.
2. Turn the ignition switch ON (II).
Is DTC 13 indicated?
YES- Go to step 3.
NO- Intermittent failure, system is OK at this time. Check for poor connections or loose terminals at the ABS control unit and at the MCM.
3. Turn the ignition switch OFF.
4. Turn the battery module switch OFF.
5. Remove the IPU lid.
6. Disconnect the MCM connector A (32P) and the ABS control unit 25P connector.





7. Check for continuity between body ground and MCM connector terminal A14.
Is there continuity?
YES- Repair short in the wire between the MCM (A14) and the ABS control unit.
NO- Go to step 8.





8. Connect the ABS control unit 25P connector terminal No. 25 to body ground with a jumper wire.





9. Check for continuity between body ground and MCM connector terminal A14.
Is there continuity?
YES- Substitute a known-good MCM and the ABS control unit, and recheck. If the symptom/indication goes away, replace the original MCM and the ABS control unit.
NO- Repair open in the wire between the MCM (A14) and the ABS control unit.