Ignition Signal With A/T

IGNITION SWITCH AND TRANSAXLE RANGE SWITCH WITH A/T

Description
When the ignition switch is in the ST position, the battery voltage is applied through the ignition switch and transaxle range switch to the engine control module.
If the selector lever is not P or N position, the battery voltage will not reach the engine control module.
Based on this signal, the engine control module determines the automatic transaxle load and drives the idle speed control motor to maintain optimum idle speed.





Circuit diagram

Troubleshooting Hints
It the transaxle range switch harness check is normal but the transaxle range switch output is abnormal, check for the control cable adjustment.








Using scan Tool











Harness Inspection Procedure