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1.

Ignition "OFF".

2.

Disconnect PCM connector.

3.

Ignition "ON".

4.

Measure voltage between terminal 6 of the PCM harness connector and chassis ground.

Specification : Remain stable at battery voltage

5.

Are circuits remaining stable at battery voltage?

▶ 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℃(41.5℉) ＆ 5.3℃(41.5℉) 〈 Engine CoolantTemp. 99.8℃〈 (211.6℉)

▶ If voltage fluctuates, check circuit for loose, bent or corroded terminals, Repair as necessary and go to "Verification of Vehicle Repair" procedure.