DRB-II Procedure

WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 1991 Plymouth Colt Vista, 1991 Plymouth Colt, 1991 Mitsubishi Mirage, 1991 Mitsubishi Galant, and 1991 Mitsubishi Eclipse. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: When using diagnostic code charts, DO NOT skip any steps in chart or incorrect diagnosis may result. Always check related Technical Service Bulletins (TSB's).

Refer to ENTERING ON-BOARD DIAGNOSTICS (USING DRB-II) to retrieve fault codes. If fault codes are NOT present and/or DRB-II is used, proceed to one of the following tests:

Go to NO START TEST 1 (NS-1) chart if a no-start condition exists or engine stalls after start-up. Perform indicated VERIFICATION PROCEDURE chart after repairs. Ensure charts apply to engine being tested.
Go to DRIVEABILITY TEST 1 (DR-1) chart if engine runs but has performance problems. Perform indicated VERIFICATION PROCEDURE chart after repairs. Ensure charts apply to engine being tested.