Test NS-6D - Repairing No Response Condition
NOTE:
For connector terminal identification, see CONNECTOR IDENTIFICATION . For wiring diagram, see WIRING DIAGRAMS - 2.0L & 2.4L
article in ENGINE PERFORMANCE. After each repair, perform TEST VER-1.
- Disconnect Throttle Position (TP) sensor connector. Using scan tool in voltmeter mode, check voltage on TP sensor connector terminal No. 1 (Violet/White wire). If voltage is more than 6 volts, repair open grounds at Powertrain Control Module (PCM) terminals No. 10 and No. 50 (Black/Tan wires). If voltage is less than 6 volts, go to next step.
- Turn ignition off. Disconnect PCM connector. Inspect PCM connector. Repair any terminals that are damaged, pushed out or miswired. If PCM connector is okay, go to next step.
- Using scan tool in voltmeter mode, check voltage on PCM connector terminal No. 20 (Dark Blue/White wire). If voltage is less than 10 volts, repair open Dark Blue/White wire between PCM connector and ignition switch. If voltage is more than 10 volts, go to next step.
- Check voltage on PCM connector terminal No. 46 (Red/Tan wire). If voltage is more than 10 volts, go to TEST NS-6B . If voltage is less than 10 volts, go to next step.
- Remove and inspect ASD fuse from power distribution center. If fuse is blown, go to step 7). If fuse is okay, go to next step.
- Using scan tool in voltmeter mode, check voltage at ASD fuse socket (Red wire). If voltage is more than 10 volts, repair open Red/Tan wire between PCM and fuse connector. If voltage is less than 10 volts, repair open Red wire between fuse connector and battery.
- If fuse is blown in step 5), turn ignition off. Disconnect Auto Shutdown (ASD) relay and Fuel Pump (FP) relay. Go to next step.
- Using scan tool in ohmmeter mode, check resistance of PCM connector terminal No. 46 (Red/Tan wire). If resistance is less than 5 ohms, repair short to ground in Red/Tan wire. Replace fuse. If resistance is more than 5 ohms, go to next step.
- Disconnect upstream Oxygen Sensor (O2S) connector. Check resistance of upstream O2S connector (component side) terminal No. 3 (White wire). If resistance is less than 5 ohms, replace upstream O2S. Replace fuse. If resistance is more than 5 ohms, go to next step.
- Disconnect downstream O2S connector. Check resistance of downstream O2S connector (component side) terminal No. 3 (White wire). If resistance is less than 5 ohms, replace downstream O2S. Replace fuse. If resistance is more than 5 ohms, go to next step.
- Check resistance of ASD relay connector terminal "D" (Dark Green/Orange wire). If resistance is less than 5 ohms, go to step 14). If resistance is more than 5 ohms, go to next step.
- Disconnect fuel pump connector. Check resistance of ASD relay connector terminal "D" (Dark Green/Orange wire). If resistance is less than 5 ohms, repair short to ground in Dark Green/Orange wire. Replace fuse. If resistance is more than 5 ohms, go to next step.
- Check Dark Green/Orange wire for an intermittent short to ground. If intermittent short to ground is found, repair Dark Green/Orange wire as necessary. Replace fuse. If no intermittent short is found, replace fuel pump. Replace fuse.
- If resistance is less than 5 ohms in step 11), ensure O2S connectors are disconnected. Disconnect ignition coil connector. Using scan tool in ohmmeter mode, check resistance of ASD relay connector terminal "D" (Dark Green/Orange wire). If resistance is more than 5 ohms, replace ignition coil. Replace fuse. If resistance is less than 5 ohms, go to next step.
- Disconnect generator field connector. Using scan tool in ohmmeter mode, check resistance of ASD relay connector terminal "D" (Dark Green/Orange wire). If resistance is more than 5 ohms, repair generator for short to ground. Replace fuse. If resistance is less than 5 ohms, go to next step.
- Disconnect fuel injector No. 1 connector. Using scan tool in ohmmeter mode, check resistance of ASD relay connector terminal "D" (Dark Green/Orange wire). If resistance is more than 5 ohms, replace fuel injector No. 1. Replace fuse. If resistance is less than 5 ohms, go to next step.
- Disconnect fuel injector No. 2 connector. Check resistance of ASD relay connector terminal "D" (Dark Green/Orange wire). If resistance is more than 5 ohms, replace fuel injector No. 2. Replace fuse. If resistance is less than 5 ohms, go to next step.
- Disconnect fuel injector No. 3 connector. Check resistance of ASD relay connector terminal "D" (Dark Green/Orange wire). If resistance is more than 5 ohms, replace fuel injector No. 3. Replace fuse. If resistance is less than 5 ohms, go to next step.
- Disconnect fuel injector No. 4 connector. Check resistance of ASD relay connector terminal "D" (Dark Green/Orange wire). If resistance is more than 5 ohms, replace fuel injector No. 4. Replace fuse. If resistance is less than 5 ohms, repair short to ground in Dark Green/Orange wire. Replace fuse.