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Home >> GMC >> 1996 >> Forward Control 7.4 J >> Repair and Diagnosis >> External Pages >> Different car >> Section 37 (Engine Controls - Tests W/Codes - 5.9L Diesel) >> Self-Diagnostic System >> DTCS/Messages >> Code 63

Code 63

WARNING: This page is about a different car, the 1995 Dodge Pickup and 1995 Dodge Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Scan tool displays PCM FAILURE EEPROM WRITE DENIED. Condition is: unsuccessful attempt to write to EEPROM location by PCM.

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