ECT System Inspection
WARNING: This page is about a different variant/trim than selected.
■ TPS Inspection
- Start engine and install GDS.
- Monitor the "TPS VOLTAGE1" and "TPS VOLTAGE2" parameters on the GDS data list.
Specification:
- Output of TPS1 increases smoothly in proportion with the throttle valve opening angle.
- Output of TPS2 decreases smoothly in inverse proportion with the.
- Are the TPS VOLTAGE1 & 2 within the specification?
YES
- Go to next step as below.
NO
- Check TPS1 & 2, referring troubleshooting guide for DTC P0121/P0221.
Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
■ etc. Motor Inspection
- Visually/physically inspect the restriction or any foreign objects in throttle body.
- Clean or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
If OK, go to next step as below.
- Ignition "OFF".
- Disconnect the etc. motor harness connector.
- Measure resistance between 'etc. output 1' terminal and 'etc. output 2' terminal of etc. motor harness connector. (Component side)
Specification: 1.2~1.8Ω at 20°C(68°F)
- Is resistance within specification?
YES
- Check for poor connection between PCM 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
- Substitute with a known-good switch and check for proper operation. If the problem is corrected, replace component and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.