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Diagnostic Aids

Perform this test when instructed during QUICK TEST  or if directed by other test procedures. This test is used to diagnose the following:

  1. Step 1) DTC P1359: Check VREF Circuit Voltage At TP Sensor  Turn ignition off. Disconnect TP sensor wiring harness connector. Turn ignition on. Measure voltage between SIG RTN terminal and VREF terminal at wiring harness connector. If voltage 4-6 volts, go to next step. If voltage is not 4-6 volts, go to CIRCUIT TEST C.
  2. Step 2) Check CKP Sensor & Trigger Wheel  Turn ignition off. Check CKP sensor and trigger wheel for damage or misalignment. Repair or replace as necessary. If no faults are found, replace PCM and repeat QUICK TEST .
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