Throttle Position Sensor (TPS) Check
Turn ignition off. Unplug electrical connector at TPS on throttle body. Note terminal identification. Insert specified thickness feeler gauge between throttle stop screw and throttle lever. See TPS RESISTANCE SPECIFICATIONS table. Using an ohmmeter, check for resistance or continuity. Replace or adjust TPS if not within specification.
TPS RESISTANCE SPECIFICATIONS 4WD 4A-FE
| Clearance In. (mm) | Terminal | Ohmmeter Reading |
|---|---|---|
| .024 (.60) | IDL-E2 | Continuity |
| .024 (.60) | PSW-E2 | No Continuity |
| .024 (.60) | IDL-PSW | No Continuity |
| .032 (.80) | IDL-E2 | No Continuity |
| .032 (.80) | PSW-E2 | No Continuity |
| .032 (.80) | IDL-PSW | No Continuity |
| Fully Open | IDL-E2 | No Continuity |
| Fully Open | PSW-E2 | Continuity |
| Fully Open | IDL-PSW | No Continuity |
TPS RESISTANCE SPECIFICATIONS 2WD 4A-GE
| Clearance In. (mm) | Terminal | Ohmmeter Reading |
|---|---|---|
| 0 (0) | VTA & E2 | 200-800 |
| .014 (.36) | IDL & E2 | 2300 or Less |
| .023 (.58) | IDL & E2 | Infinity |
| Fully Open | VTA & E2 | 3300-10,000 |
| Fully Open | VCC & E2 | 3000-7000 |