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Test 12: Throttle Position Sensor IDL Signal

NOTE: Ensure throttle position sensor adjustment and operation are normal. See TESTS W/CODES article in the ENGINE PERFORMANCE section. Adjust or replace throttle position sensor as necessary.
  1. On models with motor actuator, connect Throttle Position Sensor (TPS) connector and disconnect CC ECU connector (10-pin connector "B", models with motor actuator). Release accelerator pedal and ensure continuity exists between ground and CC ECU connector terminal No. B9 (with motor actuator, Pink wire).
  2. If continuity is present, go to next step. If continuity is not present, repair open in harness between CC ECU connector terminal No. 23 or No. B9 and terminal No. 2/IDL of 4-pin throttle position sensor connector (Pink wire).
  3. Depress accelerator pedal and ensure no continuity exists between ground and CC ECU connector terminal No. B9 (with motor actuator, Pink wire). If continuity is not present, replace CC ECU and retest system. If continuity is present, repair short in harness between CC ECU connector terminal No. 23 or No. B9 and terminal No. 2 of 4-pin throttle position sensor connector.
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