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DTC Troubleshooting

DTC TROUBLESHOOTING CHART

Step Action Value (s) Yes No
1 Did you perform the DIAGNOSTIC SYSTEM CHECK ? - Go to Step 2. Go to ON-BOARD DIAGNOSTIC (OBD II) SYSTEM CHECK .
2 Are any Throttle Actuator Control (TAC), Throttle Position (TP) sensor, or Accelerator Pedal Position (APP) sensor DTCs set? - Go to applicable DTC Table . Go to Step 3.
3
  1. Start the engine.
  2. Command the engine speed up to 1,400 rpm, down to 600 rpm, up to 1,400 rpm, and then exit using the scan tool.

Is the actual engine speed within the specified value of the commanded engine speed, with each command?		 100 rpm Go to Step 4. Go to Step 5.
4
  1. Observe the Freeze Frame / Failure Records for this DTC.
  2. Turn the ignition OFF for 30 seconds.
  3. Start the engine.
  4. Operate the vehicle within the Conditions for Setting the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame / Failure Records.

Did the DTC fail this ignition?		 - Go to Step 5. Go to Intermittents .
5 Is the engine speed more than the specified value above the desired RPM?
Did you find and correct the condition?		 100 rpm Go to Step 6. Go to Step 7.
6
  1. Inspect or test for the following conditions:
    • The engine for vacuum leaks.
    • The throttle valve for the correct operation-A throttle valve that does not close correctly sets this DTC.
    • The crankcase ventilation system for the correct operation.
  2. Repair the condition as necessary.

Did you complete the repair?		 - Go to Step 8. -
7
  1. Inspect for the following conditions:
    • Excess deposits in the throttle body.
    • A parasitic load on the engine-For example, a transaxle condition, a belt driven accessory condition.
  2. Repair the condition as necessary.

Did you complete the repair?		 - Go to Step 8. -
8
  1. Clear the DTCs with a scan tool.
  2. Turn the ignition OFF for 30 seconds.
  3. Start the engine.
  4. Operate the vehicle within the Conditions for Setting the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame / Failure Records.

Did the DTC fail this ignition?		 - Go to Step 2. Go to Step 9.
9 Check if any additional DTCs are set.
Are there any DTCs that have not been diagnosed?		 - Go to applicable DTC Table . System OK
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