Qt1 Perform Pcm Quick Test
NOTE:
If the vehicle was brought in with an emission compliance failure symptom, GO to M: Emission Compliance
STEP EM1.
- Complete preliminary checks looking for obvious concerns that may relate to the symptom. Check items such as those listed:
- Related electrical connectors or fuses
- Vacuum lines (leaks, routing)
- Air intake system (leaks, restrictions)
- Fuel quality (octane, contamination, winter/summer blend)
- Cooling system (engine operating at proper temperature)
- Access any related TSB information (if available).
- Complete PCM Quick Test to access any DTCs. Note any Key On Engine Off, Key On Engine Running (if engine runs) and Continuous Memory (MIL and non-MIL) DTCs.
NOTE:
If unable to access DTCs, or any scan tool communication concern exists, GO to A: Unable to Activate Self-Test/Network Communication Error/DTC P1001
STEP QA1.
For additional information on retrieving MIL and non-MIL DTCs, refer to CONTINUOUS MEMORY SELF-TEST
.
Were any DTCs present?
| Yes | No |
|---|---|
| If engine runs rough at idle and Key On Engine Running or Continuous Memory DTC(s) are present: GO to Quick Test QT2 to check injector fault PIDS. All Others: GO to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS for direction to service DTC(s) after noting the following: Service DTCs in the following order (begin diagnosis with the first DTC output in that mode).
|
GO to STEP 2: NO DTC(S) PRESENT SYMPTOM CHART INDEX for direction to proper STEP 3 Chart.
NOTE:
If symptom is not listed, REFER to applicable article or GO to Z: Intermittent
STEP Z1.
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