Throttle Position Sensor (TPS)
- TPS is located on throttle body. Disconnect TPS connector.
- On 1.8L, measure resistance between TPS terminals No. 2 (sensor ground) and No. 1 (sensor power). See Fig 1
.
- On 2.0L, measure resistance between terminals No. 2 (sensor ground) and No. 3 (sensor power). See Figure
.
- On all engines, resistance should be approximately 3500-6500 ohms. If resistance is not within specification, replace TPS. If resistance is within specification, go to next step.
- On 1.8L, connect an ohmmeter between terminals No. 2 (sensor ground) and No. 3 (sensor output). See Fig 1
.
- On 2.0L, connect an ohmmeter between terminals No. 2 (sensor ground) and No. 4 (sensor output). See Figure
.
- On all engines, operate throttle valve slowly from idle position to full open position. Check if resistance changes smoothly in proportion to throttle valve opening angle. Replace TPS if it does not test as described.
Courtesy of DAIMLERCHRYSLER CORP.