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