DTC P1408: Exhaust Gas RECIRCULATION (EGR) Flow Out Of Self-Test Range
WARNING: This page is about a different variant/trim than selected.
P1408 - EXHAUST GAS RECIRCULATION (EGR) FLOW OUT OF SELF-TEST RANGE
| Description: | This test is carried out during the key on engine running (KOER) on-demand self-test only. The EGR system is commanded on at a fixed engine speed. The test does not pass and the DTC is set when the measured EGR flow falls above or below the required calibration. | ||
| Possible Causes: | See possible causes for DTC P0400. | ||
| Diagnostic Aids: | For EEGR, use the output state control function of the scan tool and monitor the MAP PID (MAP) and the EEGR PID (EGRMDSD) while commanding the EEGR on. If EGR is introduced into the engine at idle, the RPM drops or stalls out. | ||
| Application | Key On Engine Off | Key On Engine Running | Continuous Memory |
| All | - | GO to PINPOINT TEST KD . | - |