4.
Any change in the values indicates a poor connection. Was a connector problem found?
 | ▶ Repair the connector. Go to "Verification of Vehicle Repair" procedure. |
 | ▶ Go to "Back Up Voltage Inspection" procedure. |
Disconnect the Battery Sensor and PCM/ECM connectors and inspect for looseness, poor connection, bending, corrosion, contamination, deterioration or damage. Reconnect the connectors.
Connect the GDS and go to “Current Data”.
Monitor PCM/ECM sensor values in Current Data, check and wiggle the harness(es), connector(s), and terminal(s).
Any change in the values indicates a poor connection. Was a connector problem found?
| ▶ Repair the connector. Go to "Verification of Vehicle Repair" procedure. |
| ▶ Go to "Back Up Voltage Inspection" procedure. |
Ignition "OFF".
Disconnect PCM/ECM connector.
Ignition "ON".
Measure voltage between terminal 6 of the PCM/ECM harness connector and chassis ground.
Specification : Remain stable at battery voltage
Are circuits remaining stable at battery voltage?
| ▶ Using a scan tool, check PCM/ECM software version and upgrade as necessary. If version is the newest one, check PCM/ECM for contamination, deterioration, or damage. Substitute with a known-good PCM/ECM and check for proper operation. If the problem is corrected, replace PCM/ECM 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/ECM 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. |
