DTC P0403-A: EGR SOLENOID CIRCUIT Chrysler LHS II

Note. For connector terminal ID, see CONNECTOR IDENTIFICATION . For wiring diagram, see WIRING DIAGRAMS article.

1. Using scan tool, read Diagnostic Trouble Codes (DTCs). If scan tool display GLOBAL GOOD TRIP is equal to zero, go to step 6 . If scan tool display GLOBAL GOOD TRIP is not equal to zero, go to next step.
2. Condition to set trouble code is not present at this time. EGR SOLENOID CIRCUIT DTC is set when EGR solenoid control circuit is not in expected state when requested to operate by Powertrain Control Module (PCM). Possible causes are: open or shorted control circuit, open Auto Shutdown Relay (ASD) output circuit, open or shorted solenoid coil, PCM failure, faulty connections or wiring. Go to next step.
3. Inspect all related wiring and connectors and repair as necessary. If no problems were found with wiring and connectors, go to next step. If related wiring and connectors were repaired, perform «TEST VER-5A: ROAD TEST FOR OBD-II TROUBLE CODES»(ref-576-S06971814902000030800000) .
4. Using scan tool, actuate EGR solenoid. With engine idling, wiggle wiring harness from EGR solenoid to PCM. If wiggling interrupted EGR solenoid actuation, repair wiring harness as necessary where wiggling caused problem to appear. Perform «TEST VER-5A: ROAD TEST FOR OBD-II TROUBLE CODES»(ref-576-S06971814902000030800000) . If wiggling did not interrupt EGR solenoid actuation, go to next step.
5. Using scan tool, read FREEZE FRAME data. Utilize FREEZE FRAME data to help in diagnostics. See «INACTIVE TROUBLE CODE CONDITION»(ref-576-S27765318282000030800000) under SELF-DIAGNOSTICS. Test is complete. Perform «TEST VER-5A: ROAD TEST FOR OBD-II TROUBLE CODES»(ref-576-S06971814902000030800000) .
6. Turn ignition off. Disconnect EGR solenoid connector. Turn ignition on. Using scan tool, actuate ASD relay. Connect a test light to EGR solenoid connector ASD relay output circuit. See «EGR SOLENOID CONNECTOR WIRE IDENTIFICATION»(ref-576-S07191080662000030800000) table. If test light is on, go to step 8 . If test light is not on, go to next step.
7. Check fuse O2/SSR (20-amp) in Power Distribution Center (PDC). If fuse is okay, repair ASD relay output circuit. Perform «TEST VER-5A: ROAD TEST FOR OBD-II TROUBLE CODES»(ref-576-S06971814902000030800000) . If fuse is not okay, replace fuse and repair ASD relay output circuit. Perform «TEST VER-5A: ROAD TEST FOR OBD-II TROUBLE CODES»(ref-576-S06971814902000030800000) .
8. Turn ignition off. Disconnect PCM connector. Using a jumper wire, jumper battery voltage to PCM connector terminal No. 40. See «PCM CONNECTOR WIRE IDENTIFICATION»(ref-576-S21751793222000030800000) table. Using a 12-volt test light, check voltage at EGR solenoid control circuit at EGR solenoid connector. See «EGR SOLENOID CONNECTOR WIRE IDENTIFICATION»(ref-576-S07191080662000030800000) table. If test light is on, go to next step. If test light is not on, repair open EGR solenoid control circuit. Perform «TEST VER-5A: ROAD TEST FOR OBD-II TROUBLE CODES»(ref-576-S06971814902000030800000) .
9. Remove jumper wire. Reconnect EGR solenoid connector. Using a jumper wire, jumper battery voltage to ASD relay output circuit at PCM connector terminal No. 6. See «PCM CONNECTOR WIRE IDENTIFICATION»(ref-576-S21751793222000030800000) table. Using a 12-volt test light, check voltage at EGR solenoid control circuit at PCM connector terminal No. 40. See «PCM CONNECTOR WIRE IDENTIFICATION»(ref-576-S21751793222000030800000) table. If test light is on, replace PCM. Perform «TEST VER-5A: ROAD TEST FOR OBD-II TROUBLE CODES»(ref-576-S06971814902000030800000) . If test light is not on, replace EGR solenoid assembly. Perform «TEST VER-5A: ROAD TEST FOR OBD-II TROUBLE CODES»(ref-576-S06971814902000030800000) .

EGR SOLENOID CONNECTOR WIRE IDENTIFICATION

PCM CONNECTOR WIRE IDENTIFICATION