Without Scan Tool

Diagnosis Connector:

When problems occur in PCME monitored input or output devices, the dash mounted malfunction indicator lamp (MIL) will light and stay "ON" while faults are present and the engine is running. Codes are stored in the computer memory that identify the faulty circuit or component. The following describes the procedure for displaying codes stored in the self diagnostic memory.

During this test procedure, the PCME will display input and output device failure codes by flashing the MIL lamp on the instrument panel.

NOTE: The PCME continuously checks for input device malfunctions. However, it only checks for output device malfunctions during a 3 second period after the ignition switch is turned "ON" with test connector grounded. If more than one failure code is present, the lowest number code is displayed first. Subsequent codes are displayed in numerical order.

INSPECTION PROCEDURE

1. Warm engine to operating temperature. Switch ignition "OFF."
2. Connect jumper wire between data link connector "TEN" and "GND" terminals.
3. Switch ignition "ON."
4. If codes are present, the MIL will light in patterns indicating code numbers.
5. When all codes have displayed, the sequence will repeat until the jumper wire is removed.
6. Record codes and repair as necessary.
7. Following repairs, perform after-repair procedure.

AFTER-REPAIR PROCEDURE

1. To erase codes from PCME memory, disconnect negative battery cable and depress brake pedal for at least five seconds. Reconnect battery cable.
2. Ensure engine is at normal operating temperature. Install jumper wire between data link connector "TEN" and "GND" terminals.
3. Switch ignition "ON."
4. Ensure that the MIL no longer flashes malfunction codes.
5. If any new codes are retrieved, repeat step 6 of inspection procedure (above). If the same code(s) recurs, recheck repair work and look for what else might cause the code(s).