3-Faulty Vehicle Speed Sensor 2

DIAGNOSIS
- Faulty speedometer or speedometer cable
- Faulty vehicle speed sensor 2 and wiring
- Faulty PCM (Power Steering Control Module)

SYMPTOM
- Steering wheel is too easy to turn during high-speed operation.





1. Check vehicle speed sensor 2 input signal at PCM.
a. Connect oscilloscope between PCM and GND. (DC COUP, 0.5 V/Div, 1s/Div, x 10 probe)
b. Raise vehicle using jack and slowly rotate wheels.





c. Measure voltage across connector (R91) terminal and GND indicated. Connector & Terminal/Specified voltage: (R91) No. 4 - Body/O - 5 V
2. Check vehicle speed sensor 2 and harness.





a. Check harness routing outside instrument panel. Measure resistance between connector (B9) and PCM connector (R9I) terminals, and PCM connector (R91) terminal and GND, indicated. Connector & Terminal/Specified resistance:
- (B9) No. 1-,(R91) No. 4/1 ohm, or less
- (R91) No. 4-Body/1 M ohm, or more
b. Disconnect connector (B9).





c. Measure resistance between connector (B9) and connector (B7) terminals, and connector (B7) terminal and GND, indicated. Connector & Terminal/Specified resistance:
- (B9) No. 2-(B7) No. 11/1 ohm. or less
- (B7) No. 11-Body/1 M ohm, or more





d. Chock continuity between connector (B9) and GND Connector & terminal/Specified resistance: (B9) No. 2-Body/1 ohm, or less