4) Check Output Signal Circuit

Turn ignition off. Disconnect ECM harness connector and PTU harness connector. Verify harness continuity between ECM harness connector terminals and PTU harness connector terminals as follows:

• ECM terminal No. 1 and PTU terminal "g" (Yellow wire).
• ECM terminal No. 2 and PTU terminal "f" (Light Green/Black wire).
• ECM terminal No. 3 and PTU terminal "e" (White wire).
• ECM terminal No. 11 and PTU terminal "c" (Pink/Black wire).
• ECM terminal No. 12 and PTU terminal "b" (Red/Blue wire).
• ECM terminal No. 13 and PTU terminal "a" (Gray wire).

See Figure . If continuity is present, go to next step. If continuity is not present, verify harness continuity between ECM connector and PTU connector. Repair harness or connectors as necessary.