|
|
6E2–78 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS Fuel System Electrical Test (Cont'd) Step No Yes Value(s) Action 9 Check for short or open between the PCM and the fuel Was a problem found? — Verify repair Go to Step 10 10 1. Check the fuel pump relay circuit for a poor terminal connection at the PCM. 2. If a problem is found, replace terminal as necessary. Was a problem found? — Verify repair Go to Step 11 11 Replace the PCM. Is the action complete? — Verify repair — 12 1. Reconnect the fuel pump relay. fuel tank. 3. Using a test light connected to ground, probe the fuel pump feed wire (harness side). 4. Command the fuel pump “ON” with a Tech 2. Did the light illuminate for 2 seconds? — Go to Step 15 Go to Step 13 13 1. Substitute a known good realy for the fuel pump realy. 2. Leave the test light connected as in step 12. its proper location. Did the test light illuminate for 2 seconds when the fuel — Go to Step 17 Go to Step 14 14 Check for a short circuit, blown fuse or open circuit Is the action complete? — Verify repair — 15 1. With the fuel pump electrical connector at the fuel tank disconnected, connect a test light between the 2. Command the fuel pump “ON” with a Tech 2. Did the test light illuminate for 2 seconds? — Go to Step 18 Go to Step 16 16 Repair the open circuit in the fuel pump ground wire. Is the action complete? — Verify repair — 17 Replace the fuel pump relay. Is the action complete? — Verify repair — 18 Replace the fuel pump. Is the action complete? — Verify repair — |