DTC 14

Throttle Position (TPS) Sensor Circuit:

COMPONENT TEST

1. Disconnect the throttle position sensor connector.

Throttle Position Sensor Test:

2. Measure the resistance between terminals 1 and 4 of the throttle position sensor connector.
Terminal 1: Sensor ground
Terminal 4: Sensor power

Standard Value...3.5-6.5 Kohm

Throttle Position Sensor Test:

3. Connect an analog type ohm meter between terminals 1 and 3.
Terminal 1: Sensor ground
Terminal 3: Sensor output

4. Slowly open the throttle valve from the idle position to the fully open position and check that the resistance values change smoothly with the opening of the throttle valve.
Standard Value...Approx 0.5 Kohm increasing to 3.5-6.5 Kohm

5. If a resistance is out of specification, or if the change is not smooth, replace the throttle position sensor.

HARNESS TEST

1. Disconnect the TPS harness connector.
2. Connect a voltmeter to harness connector terminal 4 and ground.
3. Turn ignition switch "On".
4. Measure voltage.
VOLTAGE:
4.8-5.2 Volts

5. Using an ohmmeter, check for continuity between harness connector terminal 1 and ground.

CONTINUITY:
Should Exist

6. Using an ohmmeter, check for continuity between TPS harness connector terminal 3, and ECU harness connector.

CONTINUITY:
Should Exist

7. Using an ohmmeter, check for shorts to ground between TPS harness connector terminal 3, and ECU harness connector.

CONTINUITY:
Should Not Exist