System Inspection
- Back Up Voltage Inspection
- Ignition "OFF"
- Disconnect PCM connector.
- Ignition "ON"
- Measure voltage between terminal 6 of the PCM harness connector and chassis ground.
Specification: Remain stable at battery voltage
- Are circuits remaining stable at battery voltage?
YES
- Using a scan tool, check PCM software version and upgrade as necessary. If version is the newest one, check PCM for contamination, deterioration, or damage. Substitute with a known-good PCM and check for proper operation. If the problem is corrected, replace PCM and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.NOTE: It is necessary to perform the TPS adaptation procedure after the ETC assembly or PCM replacing.
- TPS adaptation procedure
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 CoolantTemp. <99.8°C(211.6°F)
NO
- Go to next step as below.
- Using a scan tool, check PCM software version and upgrade as necessary. If version is the newest one, check PCM for contamination, deterioration, or damage. Substitute with a known-good PCM and check for proper operation. If the problem is corrected, replace PCM and then go to "VERIFICATION OF VEHICLE REPAIR " procedure.