P2138 is set when output voltage of APS 2 is above the maximum value of 2.463V for more than 0.18 sec. This code is due to the short to battery in APS 2 power circuit and signal circuit or open in sensor ground circuit.
Item | Detecting Condition | Possible Cause | ||
DTC Strategy |
•
Voltage monitoring | 1. APS 2 Circuit 2. APS component | ||
Enable Conditions |
•
IG key ON (Accelerator pedal depressed) | |||
Threshold Value |
•
When output signal is above the maximum value (above 2463mV) | |||
Diagnostic Time |
•
0.18 sec. | |||
Fail Safe | Fuel cut | NO |
•
APS standard value is 0%.
•
Limp home idle is fixed at 1200RPM. | |
EGR Off | NO | |||
Fuel Limit | NO | |||
Check Lamp | ON | |||
