P1409 - Exhaust Gas RECIRCULATION (EGR) Vacuum Regulator Solenoid Circuit
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P1409 - EXHAUST GAS RECIRCULATION (EGR) VACUUM REGULATOR SOLENOID CIRCUIT
| Description: This test checks the electrical function of the EGR vacuum regulator solenoid. This DTC sets when the EVR circuit voltage is either too high or too low when compared to the expected voltage range. The EGR system must be enabled for the test to be completed. | |||
Possible Causes:
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| Diagnostic Aids: The EGR vacuum regulator solenoid resistance is between 26 and 40 ohms. | |||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | GO to PINPOINT TEST HH: EXHAUST GAS RECIRCULATION SYSTEM MODULE (ESM) . | ||