PCM monitors the output signal of the MAPS every 5 seconds, if an output signal is above 4.5V for more than 2.5 seconds, the PCM sets a P0108 DTC.
Item | Detecting Condition | Possible cause | |
DTC Strategy |
•
This code detects a continuous short to a voltage higher than 4.5V in either the signal circuit or the MAPS sensor | 1. Poor Connection 2. Short in Signal Circuit 3. Open in Ground Circuit 4. Faulty MAPS 5. Faulty PCM | |
Enable Conditions | Case 1 |
•
No TPS Active Fault Present
•
Engine Running Time longer than 10sec.
•
Engine Speed lower than 2500rpm
•
Throttle Position less than 30% | |
Case 2 |
•
No TPS Active Fault Present
•
Engine Running Time longer than 10sec.
•
Engine Speed higher than 2500rpm
•
Throttle Position less than 40% | ||
Threshold value |
•
MAP Signal greater than 4.5V | ||
Diagnosis Time |
•
Continuous (More than 2.5 seconds failure for every 5 seconds test ) | ||
MIL On Condition |
•
3 Driving Cycles | ||
