DTC Confirmation Test "C"
WARNING: This page is about a different car, the 2002 Nissan Sentra. However, it is still accessible from the selected car via links, so may be relevant.
Malfunction "C" is detected when ECM receives a low voltage from TP sensor under heavy-load driving conditions. Possible causes are:
- TP sensor circuit open or shorted.
- Intake air leaks.
- Defective TP sensor.
CAUTION:
DO NOT use ECM ground terminals when measuring voltage.
To set DTC, start engine and warm to normal operating temperature. Measure voltage between ground and ECM connector terminal No. 61 (Green wire) by backprobing. See Figure. Drive vehicle under a heavy-load condition with engine speed greater than 2000 RPM and voltage at terminal No. 61 greater than 3 volts for at least 10 consecutive seconds. If first trip DTC is detected, perform DIAGNOSTIC PROCEDURE .