STEP 1. Using scan tool (M.U.T.-IIISE), read the diagnostic trouble code (DTC).
caution | To prevent damage to scan tool (M.U.T.-IIISE), always turn the ignition switch to the "LOCK" (OFF) position before connecting or disconnecting scan tool (M.U.T.-IIISE). |
(1) Connect scan tool (M.U.T.-IIISE) to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Set scan tool (M.U.T.-IIISE), read the DTC.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Is the DTC P0171 or P0172 set?
Go to Step 2. Replace the ECM (Refer to Removal and Installation ). Then go to Step 5.