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
| Model/ Application | Clearance In. (mm) | Terminal Identification | Ohmmeter Reading |
|---|---|---|---|
| 4WD 4A-FE | .024 (.60) | IDL-E2 | Continuity |
| " | " | PSW-E2 | No Continuity |
| " | " | IDL-PSW | No Continuity |
| " | .032 (.80) | IDL-E2 | No Continuity |
| " | " | PSW-E2 | No Continuity |
| " | " | IDL-PSW | No Continuity |
| " | Fully Open | IDL-E2 | No Continuity |
| " | " | PSW-E2 | Continuity |
| " | " | IDL-PSW | No Continuity |
| 2WD 4A-GE | 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 |
| " | " | VCC & E2 | 3000-7000 |