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Home >> Infiniti >> 1994 >> J30 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Trouble Code (DTC) Testing (J30) >> DTC 43: Throttle Position Sensor (TPS) >> 2) Check Ground Circuit

2) Check Ground Circuit

Turn ignition off. Verify harness continuity between TPS connector terminal "a" (Orange/Blue wire) and engine ground. See Fig 1 . If continuity is present, go to next step. If continuity is not present, verify harness continuity between TPS terminal "a" and ECM terminal No. 30 (Orange/Blue wire), and between automatic transmission control unit terminal No. 35 (48-pin connector located on driver side kick panel) and TPS terminal "b" (Orange/Blue wire). If continuity is not present, repair harness or connectors as necessary.

Fig 1: DTC 43, Checking Ground Circuit
G93H78565Courtesy of NISSAN MOTOR CO., U.S.A.