Component Inspection
Component Inspection
1. Reconnect the TPS1 and ECM connectors.
2. After engine starting, connect Scantool and monitor the "TPS1" parameter on the Scantool data list.
A. Specification :
- Closed throttle status : Approx. 0.3-0.7V, Wide open throttle : Approx 4.45-4.85V
- 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 TPS1 for contamination, deterioration or damage. Substitute with a known-good TPS1 and check for proper operation. If the problem is corrected, replace TPS1 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.
1) 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)