2/13/2023 0 Comments Aldl in bankIt houses a fuel pump override lead that has battery voltage. Any loose strands could short another terminal.ġ990-1993 Corvettes use the first generation ALDL connector. Watch that the twisted wires stay inside the terminal during installation. This 1990-1993 ALDL has the jumper in place. The jumper wire is placed in the proper connector slots and the interrogation begins. The ALDL (Assembly Line Diagnostic Link) is used to access the codes with a jumper wire. For example, the CCM interaction is invaluable when diagnosing interior component or courtesy light problems and the VATS (Vehicle Anti-theft System). Although limited ECM data is available, it can point you in the right direction. In addition, ABS/ASR (Anti-lock Brake System/Acceleration Slip Regulation) and EBTCM (Electronic Brake Traction Control Module) trouble codes and data were introduced on the 1992-1996 Corvettes. When the 1990 Corvette debuted, GM introduced ECM (Engine Control Module) and CCM (Central Control Module) trouble codes. Have you noticed “SYS” intermittently showing up in your 1990-1996 Corvette’s speedometer display? This means there is a trouble code stored in one of the on-board control modules.
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