P2122 is set when output voltage of APS 1 is below the minimum value of 250mV or output voltage of APS 2 is below the minimum value of 125mV for more than 0.18 sec. This code is due to open or short to ground in APS 1 or APS 2 signal or power circuit .
Item | Detecting Condition | Possible Cause | ||
DTC Strategy |
•
Voltage monitoring | 1. APS 1 Circuit 2. APS component | ||
Enable Conditions |
•
IG key ON (Accelerator pedal depressed) | |||
Threshold value |
•
When output APS1 signal is below 250mV
•
When output APS2 signal is below 125mV | |||
Diagnosis 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 | |||
