1st Gear Recognition Switch is used to control fuel quantity and improve a climb performance when going up a slope.
This monitoring is to detect the implausible input from 1 st gear recognition switch or neutral switch and carried out only once in the same driving cycle.
If the auto transaxle generates threshold value, the ECM judged this as a fault and DTC is set.
Item | Detecting Condition | Possible Cause |
DTC Strategy | ● Circuit continuity check | ● Open or short to ground in 1st gear recognition switch power circuit ● Open in 1st gear recognition switch ground circuit ● Faulty 1st gear recognition switch ● Faulty ECM |
Enable Conditions | ● Engine run | |
Threshold Value | ● Short for 1st gear recognition switch circuit | |
Diagnostic Time | ● 1 sec. | |
MIL Fuel Limit Fuel Cut EGR Off | ● No ● No ● No ● No |
