Transmission Control Systems
***UPDATED BY TSB 180392, DATED SEPTEMBER 1992DTC 31 Throttle Position Sensor:
Throttle Position Sensor Circuit:
1. MEASURE SIGNAL VOLTAGE INPUT OF TCU.
a. Turn ignition switch ON (with engine OFF).
b. Measure signal voltage input emitted from throttle sensor with accelerator pedal fully depressed.
Connector & Terminal/Specified value
(B67) No. 8 - Body/
.5 V (Throttle fully closed)
4.5 V (Throttle fully open)
2. CHECK HARNESS/CONNECTOR BETWEEN TCU AND THROTTLE SENSOR.
a. Disconnect connector from TCU.
b. Disconnect connector from throttle sensor.
c. Measure resistance between TCU and throttle sensor connectors.
Connector & Terminal/Specified value
(B67) No. 8 - (E11) No.1/0 ohms
(867) No. 8 - Body /1 Mohm min.
TPS Terminals:
3. CHECK THROTTLE SENSOR.
a. Disconnect connector from throttle sensor.
b. Measure resistance between throttle sensor terminals.
Connector & Terminal/Specified value
No.1 - No.2/
1 Kohm (Throttle fully closed)
4.3 Kohm (Throttle fully open)