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DTC Troubleshooting: B1183

DTC B1183:
 Gauge Control Module Lost Communication with EPS Control Unit (EPS Message)
  1. Clear the DTCs with the HDS.
  1. Turn the ignition switch to LOCK (0), and then back to ON (II).
  1. Wait for 6 seconds or more.
  1. Check for DTCs with the HDS.
Is DTC B1183 indicated?
YES -
Go to Step 5 .
NO -
Intermittent failure, the system is OK at this time. Check for loose or poor connections.■
Are any DTCs indicated?
YES -
Go to the indicated DTCs, then recheck.
NO -
Go to Step 6 .
  1. Turn the ignition switch to LOCK (0).
  1. Disconnect the gauge control module 32P connector.
  1. Disconnect EPS control unit connector C (16P).
  1. Check for continuity between the gauge control module 32P connector No. 29 and No. 30 terminals and EPS control unit connector C (16P) No. 9 and No. 10 terminals and body ground individually.
Is there continuity?
YES -
Substitute a known-good EPS control unit, and recheck. If the indication goes away, replace the original EPS control unit. If the DTC is still present, replace the gauge control module.
NO -
Repair an open in the wire.■