DTC P2610 ECM/Pcm Internal Engine Off Timer Performance: DTC Detecting Condition
DTC DETECTING CONDITION CHART
| ITEM |
Detecting Condition |
Possible Cause |
| DTC Strategy |
Case 1 |
- The LPC SPI Diagnostic allows the Low Power Counter to count down and simulateneously enables a test timer to run for a calibratable length of time and then compares the time elapsed recorded by the LPC (counter delta) against that recorded by the test timer in order to make a PASS/FAIL determination.
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| Case 2 |
- The LPC Reset Test checks for abnormal resets of the Low Power Counter
|
| Enable-Condition |
Case 1 |
- Test not complete
- Engine running
- Enough runtime > 10sec.
- Battery voltage > 8V
|
| Case 2 |
- No Memory Failure Occurred
|
| Threshold |
Case 1 |
- The difference between the Counter Delta (test time as recoded by the low power counter) and the calibration the test timer clocks up to should be less than a maximum tolerance > 20sec.
|
| Case 2 |
- The Initial Register Read flag is set to TRUE only when the Low Power Counter has been reset due to power supply problems or the like.
- The Diagnostic logs a failure when it sees this flag set to TRUE,
- Provided the engine is not running,
- The battery voltage is not too low
- The test has not already run this key cycle.
|
| Diagnosis Time |
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| MIL On Condition |
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