Qt1 Carry Out The Pcm Quick Test

WARNING: This page does not describe the selected car, but rather 29 other vehicles, including the 2007 Mercury Mountaineer, 2007 Mercury Monterey, 2007 Mercury Montego, 2007 Mercury Milan, and 2007 Mercury Mariner. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: If the vehicle was brought in with an emission compliance concern, refer to PINPOINT TEST EM - EMISSION COMPLIANCE .

NOTE: For applications that use a stand-alone transmission control module (TCM), the PCM does not output TCM related diagnostic trouble codes (DTCs). Refer to the appropriate AUTOMATIC TRANSMISSION/TRANSAXLE article for diagnosis and testing.

NOTE: If unable to access the PCM DTCs, or a scan tool communication concern exists, refer to PINPOINT TEST QA - UNABLE TO ACTIVATE SELF-TEST/NETWORK COMMUNICATION ERROR . For additional information on retrieving malfunction indicator lamp (MIL) and non-MIL DTCs, refer toDIAGNOSTIC METHODS Continuous Memory Self-Test.

Complete the preliminary checks looking for obvious concerns that may relate to the symptom. Check for the following items:
- 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 Technical Service Bulletin (TSB) information (if available).
Carry out the PCM self-test to access any DTCs. Record any key on engine off (KOEO), key on engine running (KOER) (if the engine runs) and continuous memory (MIL and non-MIL) DTCs.
Are any DTCs present?

Yes	No
GO toDIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONS for direction to repair DTCs after noting the following: Diagnose the DTCs in the following order (begin diagnosis with the first DTC output in that mode and diagnose any circuit related DTCs first). For multiple circuit DTCs that are set as a result of a concern with more than one component, REFER to the appropriate SYSTEM WIRING DIAGRAMS article and identify the common cause such as SIG RTN, VREF, or VPWR. Continue DTC diagnosis by referring to the appropriately identified pinpoint test. Any KOEO self-test DTCs Any KOER self-test DTCs Any continuous memory self-test DTCs. Retrieve any available freeze frame data and disregard any identical/related continuous DTCs already repaired.	GO to STEP 2: NO DIAGNOSTIC TROUBLE CODES (DTCS) PRESENT SYMPTOM CHART INDEX for direction to the proper symptom chart in STEP 3: NO DIAGNOSTIC TROUBLE CODES (DTCS) PRESENT SYMPTOM CHARTS . If the symptom is not listed, REFER to the applicable service information article to continue diagnosis.

Yes

GO toDIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONS for direction to repair DTCs after noting the following:
Diagnose the DTCs in the following order (begin diagnosis with the first DTC output in that mode and diagnose any circuit related DTCs first). For multiple circuit DTCs that are set as a result of a concern with more than one component, REFER to the appropriate SYSTEM WIRING DIAGRAMS article and identify the common cause such as SIG RTN, VREF, or VPWR. Continue DTC diagnosis by referring to the appropriately identified pinpoint test.

Any KOEO self-test DTCs
Any KOER self-test DTCs
Any continuous memory self-test DTCs. Retrieve any available freeze frame data and disregard any identical/related continuous DTCs already repaired.

GO to STEP 2: NO DIAGNOSTIC TROUBLE CODES (DTCS) PRESENT SYMPTOM CHART INDEX for direction to the proper symptom chart in STEP 3: NO DIAGNOSTIC TROUBLE CODES (DTCS) PRESENT SYMPTOM CHARTS .
If the symptom is not listed, REFER to the applicable service information article to continue diagnosis.