Note. For terminal identification, see TERMINAL IDENTIFICATION in SELF-DIAGNOSTICS section. For circuit and wire color identification, see WIRING DIAGRAMS article.
- Disconnect TP sensor connector. Check continuity between TP sensor terminals No. 3 and 4. Continuity should exist with throttle at idle. Continuity should not exist when throttle is opened. If continuity is as specified, go to next step. If continuity is not as specified, replace TP sensor.
- Turn ignition on. Check voltage between ground and TP sensor connector terminal No. 3. Voltage should be more than 4 volts. Check continuity between ground and TP sensor connector terminal No. 4. If voltage is as specified and continuity exists, check TP sensor connector. If connector is okay, replace PCM. If voltage is not as specified or continuity does not exist, check PCM connector and wiring harness between PCM and TP sensor connector. If connector and wiring are okay, replace PCM.