Component Inspection

1. Reconnect the TPS1 connector and ECM connector.
2. After engine starting, connect Scan Tool and monitor the "TPS1" parameter on the Scan Tool data list.

   Specification :

   • Closed throttle status : Approx. 0.3~0.7V, Wide open throttle : Approx. 4.45~4.85V
   • Signal increases with throttle opening angle
     Fig 1: Identifying Signal Waveform

     
3. Is sensor data near the specified value?

   YES 

   • 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 

   • 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.
   NOTE: 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) < Engine Coolant Temp. <99.8°C (211.6°F)
3. After TPS adaptation, the system normality should be confirmed by reading out "FMY" on the Scan Tool