The ECM/PCM sets DTC P2610 when the ECM/PCM indicates an error in the internal ECM/PCM engine off timer processor. The test fails when the difference between the engine off time and the LPC(Low Power Counter) time exceeds a calibrated limit for a calibrated amount of time.
Item | Detecting Condition | Possible Cause | |
DTC Strategy | Case1 |
•
During engine running, check accuracy of time measurement by Engine-off timer µC | 1. ECM/PCM 2. Battery low-voltage 3. Incorrect or intermittent battery cable connections 4. Engine coolant temperature sensor concern 5. Engine cooling system concerns |
Case2 |
•
During Engine stop, check Engine-off timer start increment | ||
Enable Conditions | Case1 |
•
Ignition Key On
•
Time with Ignition Key On > 10sec
•
5V < Battery Voltage < 16V | |
Case2 |
•
Transition Engine running (rpm > 32 rpm)
•
5V < Battery Voltage < 16V | ||
Threshold Value | Case1 |
•
T_ES_DIF (continuous check during complete engine run time) > 10 sec.+ 2% of engine running time | |
Case2 |
•
Engine-off timer (Engine-off timer resolution = 1 sec) < 1sec or > 4sec | ||
Diagnostic Time | Case1 |
•
Continuous | |
Case2 |
•
2 sec | ||
MIL ON Condition |
•
2 Driving Cycles | ||
* LPC(Low Power Counter) : Time counter after IG OFF
