Where is the OBD-I code on a C4 Corvette?
Where is the OBD-I code on a C4 Corvette?
The following applies to recovering the OBD-I (On Board Diagnostics) codes on the 1984 through 1993 model C4 Corvettes via the 12 pin ALDL connector located under the dash just to the right of the steering column.
What happens when there is no diagnostic code on a corvette?
If there are no codes, the speedometer will show three dashes (—) and if the CCM cannot communicate with the other computers, the letters “ERR” will show up on the display. The module number associated with the codes will be displayed on the odometer and will show which computer’s codes is being displayed.
Where are the ECM codes on a C4 Corvette?
Recovering the C4 ECM/PCM Codes The following applies to recovering the OBD-I (On Board Diagnostics) codes on the 1984 through 1993 model C4 Corvettes via the 12 pin ALDL connector located under the dash just to the right of the steering column.
What’s the C4 code on a check engine light?
Turn on the ignition but Do Not start the automobile. Within a few seconds, your “Check Engine” light (early C4s) or “SYS” light (later C4s) will flash a code of 12.
The following applies to recovering the OBD-I (On Board Diagnostics) codes on the 1984 through 1993 model C4 Corvettes via the 12 pin ALDL connector located under the dash just to the right of the steering column.
Recovering the C4 ECM/PCM Codes The following applies to recovering the OBD-I (On Board Diagnostics) codes on the 1984 through 1993 model C4 Corvettes via the 12 pin ALDL connector located under the dash just to the right of the steering column.
Turn on the ignition but Do Not start the automobile. Within a few seconds, your “Check Engine” light (early C4s) or “SYS” light (later C4s) will flash a code of 12.
If there are no codes, the speedometer will show three dashes (—) and if the CCM cannot communicate with the other computers, the letters “ERR” will show up on the display. The module number associated with the codes will be displayed on the odometer and will show which computer’s codes is being displayed.
