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ABS DTC Troubleshooting: 86-01

DTC 86-01:
 F-CAN Bus-off Malfunction
  1. Turn the ignition switch to ON (II).
  1. Clear the DTC with the HDS.
  1. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.
  1. Check for DTCs with the HDS.
Is DTC 86-01 indicated?
YES -
Go to Step 5 .
NO -
Intermittent failure, the system is OK at this time. Check for loose terminals between ECM/PCM connector A (49P) and the ABS modulator-control unit 25P connector. Refer to intermittent failures troubleshooting.
  1. Turn the ignition switch to LOCK (0).
  1. Short the SCS line with the HDS.
  1. Disconnect ECM/PCM connector A (49P).
  1. Check for continuity between the ABS modulator-control unit 25P connector terminal and ECM/PCM connector A (49P) terminal (see table).
    Sign
    ABS Modulator-control Unit 25P Connector Terminal
    ECM/PCM Connector A (49P) Terminal
    CAN-L
    No. 17
    No. 4
    CAN-H
    No. 1
    No. 3

Is there continuity?
YES -
Check for loose terminals in the ABS modulator-control unit 25P connector. If necessary, substitute a known-good ABS modulator-control unit, and retest.■
NO -
Repair open in the wire between the ECM/PCM and the ABS modulator-control unit.■