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Home >> Jeep >> 1994 >> Grand Cherokee Laredo, 5.2 Y, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 5.2L >> Trouble Codes/Messages >> CODES/MESSAGES (Note: For DTC table, see TEST TC-1A under "Testing.") >> Code 53

Code 53

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



DRB displays PCM FAILURE SPI COMMUNICATION. Condition is: Powertrain Control Module (PCM) detects internal failure.

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