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Home >> Jeep >> 1993 >> Wrangler Base, 2.5 P >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 2.5L & 4.0L >> DTC & Fault Codes/Messages >> Codes/Messages >> Code 53

Code 53

DRB-II displays INTERNAL PCM FAILURE. Condition is: Powertrain Control Module (PCM) detects internal failure.



DRB-II displays PCM FAILURE SPI COMMUNICATION. Condition is: No CCD bus communication.