DTC P1640: Powertrain DTCS Available In Another Module
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P1640 - POWERTRAIN DTCS AVAILABLE IN ANOTHER MODULE
| Description: | Vehicles using a secondary engine control module can request that the powertrain control module (PCM) illuminate the malfunction indicator lamp (MIL) when a failure occurs which affects emissions. | ||
| Possible Causes: | |||
| Diagnostic Aids: | DTCs stored in a secondary module, which requested the MIL to be turned on. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | Refer to the Description, Possible Causes and Diagnostic Aids for the DTC in table. | ||