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STEP
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INSPECTION
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RESULTS
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ACTION
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1
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Connect the WDS or equivalent to the DLC-2.
Access the ECT PID.
Start and warm up the engine to normal operating temperature.
Is the ECT PID reading between 82-112°C {180-234°F}?
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Yes
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Go to the next step.
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No
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ECT PID is more than 112°C {234°F}:
Go to the symptom troubleshooting "No.17 Cooling system concerns - Overheating".
ECT PID is less than 82°C {180°F}:
Go to the symptom troubleshooting "No.18 Cooling system concerns - Runs cold".
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2
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Connect the WDS or equivalent to the DLC-2.
Retrieve any continuous memory DTCs.
Are there any DTCs displayed?
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Yes
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DTC is displayed:
Go to the appropriate DTC test.
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No
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No DTC is displayed:
Go to the next step.
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3
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Connect the WDS or equivalent to the DLC-2.
Access the ACSW, A/CL V, CPP, CPP/PNP, TR and PSP PIDs.
Monitor each PID.
Are PIDs normal?
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Yes
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Go to the next step.
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No
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ACSW PID:
Inspect the A/C switch, refrigerant pressure switch and fan switch.
A/CL V PID:
Inspect the refrigerant pressure switch (middle pressure).
CPP PID:
Inspect the clutch switch (MTX).
CPP/PNP PID:
Inspect the neutral switch (MTX)
TR PID:
Inspect the TR switch (ATX).
PSP PID:
Inspect the PSP switch.
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4
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Is there air leakage felt or heard at intake-air system components while racing the engine to a higher speed?
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Yes
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Repair or replace parts if necessary.
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No
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Verify accelerator cable free play.
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5
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Verify test results.
• If normal, return to the diagnostic index to service any additional symptoms.
• If the malfunction remains, replace or reprogram the PCM.
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