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Harness Inspection
- Inspect CPS to ECM input circuit. Disconnect CPS sensor harness connector and ECM connector. Connect jumper wire between ECM harness connector terminal No. 48 and vehicle ground. See Figure
. Using ohmmeter, measure resistance between CPS harness connector terminal No. 2 (Black/Yellow wire) and vehicle ground. If continuity does not exist, inspect and repair circuit as needed.
- Check continuity of shield ground circuit. Using ohmmeter, check resistance between sensor harness connector terminal No. 1 (Black wire) and vehicle ground. If continuity does not exist, inspect and repair circuit as needed.
- Check continuity of output circuit between CPS sensor and ECM. Connect jumper wire between vehicle ground and ECM harness connector terminal No. 49 (White/Yellow wire) on non-turbo model or terminal No. 47 (White/Yellow wire) on turbo model. See Figure
. Using ohmmeter, check resistance between CPS harness connector terminal No. 3 (White/Yellow wire) and vehicle ground. If continuity does not exist, inspect and repair circuit as needed.