DTC 32: EGR Function
- Check Vacuum Source To EGR Valve
- Start engine and warm to operating temperature. Disconnect hose from EGR valve and check vacuum. Vacuum should not be present. Raise engine speed to about 2000 RPM and check vacuum. Vacuum should be present. If vacuum is not as specified, go to next step. If vacuum is as specified, inspect EGR valve and EGRC-BPT valve. See appropriate I - SYS/COMP TESTS article. Repair or replace as necessary and perform FINAL CHECK
in this article.
- Check Control Function
- Start engine. Connect voltmeter between ECM terminal No. 105 and ground. See Figure
and Fig 2
. At 2000 RPM, battery voltage should be present. At 4000 RPM, .6-.8 volt should be present. If voltage is not as specified, go to next step. If voltage is as specified, inspect vacuum hose for clogging, cracks or bad connection. Repair vacuum hose as necessary.
- Check Output Signal Circuit
- Turn engine off. Leave ECM disconnected. Disconnect EGR and canister control solenoid valve wiring harness connector. See Fig 1
. Check continuity between ECM terminal No. 105 (Gray wire) and ground. See Figure
and Fig 3
. Check continuity between EGR and canister control solenoid valve harness connector terminal "a" (White/Green wire) and ground. If continuity is present, repair wiring harness or connectors as necessary. If continuity is not present, go to next step.
- Check Component
- Measure resistance of EGR temperature sensor. Inspect EGR and canister control solenoid valve. See I - SYS/COMP TESTS article. Replace EGR and canister control solenoid valve and/or EGR temperature sensor if necessary and perform FINAL CHECK
in this article. If components are okay, repair ECM pin terminals and/or connector terminals.
- Check Component Using Consult Tester (J-38465)
- Turn ignition off and connect Consult tester. Connect ECM harness connector and EGR and canister control solenoid valve harness connector. Turn ignition on. Perform EGRC SOL/V CIRCUIT in FUNCTION TEST mode. Turn EGR and canister control solenoid valve on and off using Consult tester in ACTIVE TEST mode. Replace EGR and canister control solenoid valve if operating sounds are not heard. Perform FINAL CHECK
in this article.
Courtesy of NISSAN MOTOR CO., U.S.A.
Courtesy of NISSAN MOTOR CO., U.S.A.
Courtesy of NISSAN MOTOR CO., U.S.A.