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DTC U0402-68: Signal Error From TCM: Notes

DTC U0402:68 Signal error from TCM
DETECTION CONDITION 
  • The instrument cluster received error signals from the transaxle for 5 s  with the ignition switched ON (engine off or on).
FAIL-SAFE FUNCTION 
POSSIBLE CAUSE 
  • The transaxle could not send a normal signal temporarily. (DTCs are stored in the TCM.)
  • TCM malfunction
  • Instrument cluster malfunction
SYSTEM WIRING DIAGRAM  -