Circuit Description
The customer-snapshot feature lets the customer store the powertrain control module (PCM) data when a driveability problem occurs. The feature permits several snapshots during each ignition cycle. When the customer requests the snapshot, the PCM stores the data, and sets the diagnostic trouble code (DTC) P1624. The PCM also illuminates the malfunction indicator lamp (MIL) for a specific length of time to tell the customer that the data has been stored.
Conditions for Setting the DTC
The PCM receives a customer-Snapshot request.
Action Taken When the DTC Sets
| • | The control module stores the DTC information into memory when the diagnostic runs and fails. |
| • | The malfunction indicator lamp (MIL) will not illuminate. |
| • | The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Failure Records. |
| • | The driver information center, if equipped, may display a message. |
Conditions for Clearing the DTC
| • | A current DTC Last Test Failed clears when the diagnostic runs and passes. |
| • | A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other non-emission related diagnostic. |
| • | Clear the DTC with a scan tool. |
Diagnostic Aids
This DTC informs the technician that the customer has initiated the customer-Snapshot function. The PCM will store up to 6 snapshots in the Failure Records before over-writing the first recorded snapshot. The customer-Snapshot function may help to diagnose conditions which could not be duplicated during previous diagnosis.
If no other DTCs are set, the problem is most likely intermittent. Refer to Intermittent Conditions .
Step | Action | Yes | No |
|---|---|---|---|
1 | Did you perform the Diagnostic System Check-Engine Controls? | Go to Step 2 | |
2 | With the scan tool, observe the stored information, Capture Info. Does the scan tool display any DTCs that you have not diagnosed? | Go to Intermittent Conditions |
