P0403: EGR Vacuum Regulator Solenoid Circuit Malfunction (Vehicles With Out Electric EGR)
P0403 - EGR VACUUM REGULATOR SOLENOID CIRCUIT MALFUNCTION (VEHICLES WITH OUT ELECTRIC EGR)
| Description: | This test checks the electrical function of the EGRVR solenoid. The test fails when the EGRVR 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 |
| Vehicles with Electric EGR (EEGR) | GO to PINPOINT TEST KD: ELECTRIC EXHAUST GAS RECIRCULATION (EEGR) SYSTEM Step 1. | GO to PINPOINT TEST KD: ELECTRIC EXHAUST GAS RECIRCULATION (EEGR) SYSTEM Step 1. | GO to PINPOINT TEST KD: ELECTRIC EXHAUST GAS RECIRCULATION (EEGR) SYSTEM Step 1. |
| Vehicles with an EGR System Module (ESM) | GO to PINPOINT TEST HH: EXHAUST GAS RECIRCULATION SYSTEM MODULE (ESM) Step 23. | GO to PINPOINT TEST HH: EXHAUST GAS RECIRCULATION SYSTEM MODULE (ESM) Step 23. | GO to PINPOINT TEST HH: EXHAUST GAS RECIRCULATION SYSTEM MODULE (ESM) Step 23. |
| All others | GO to PINPOINT TEST HE: EXHAUST GAS RECIRCULATION (EGR) SYSTEMS Step 59. | GO to PINPOINT TEST HE: EXHAUST GAS RECIRCULATION (EGR) SYSTEMS Step 59. | GO to PINPOINT TEST HE: EXHAUST GAS RECIRCULATION (EGR) SYSTEMS Step 59. |