Component Inspection
Component Inspection
1. Reconnect the TPS 1 and ECM connectors.
2. After engine starting, connect Scantool and monitor the "TPS 1" parameter on the Scantool data list.
A. Specification:
- Closed throttle status : Approx. 0.2 - 0.8V, Wide open throttle : Approx 4.2 - 4.8V
- Signal increases with throttle opening angle
3. Is sensor data near the specified value ?
YES
1) Check for poor connection between ECM and component: backed out terminal, improper mating, broken locks or poor terminal to wire connection. Repair as necessary and go to "Verification of Vehicle Repair" procedure
NO
1) Check TPS 1 for contamination, deterioration, or damage. Substitute with a known-good TPS 1 and check for proper operation. If the problem is corrected, replace TPS 1 and then go to "Verification of Vehicle Repair" procedure.
CAUTION: It is necessary to perform the TPS adaptation procedure with Scan tool when the throttle body assembly or ECM is replaced.
- TPS adaptation procedure
1. Erase previous TPS adaptation value using Scan tool.
2. Ignition "OFF" and then "ON" without cranking. Wait for 10 seconds under enable conditions
- Enable conditions : Battery >10V & Intake Air Temp. >5.3 °C (41.5 °F) & 5.3 °C (41.5 °F)