Qt2 Carry Out The Pcm And SOBDMC Quick Test

NOTE: Make sure the low voltage battery is fully charged and the low voltage system is operating correctly. Low voltage concerns may be a possible cause of a DTC.

NOTE: Do not carry out consecutive quick tests without turning the ignition to OFF position for a minimum of 15 seconds.

Complete the PCM quick test to access any DTCs. Note any key ON engine OFF (KOEO), key ON engine running (KOER) (if engine runs) and continuous memory (MIL and non-MIL) DTCs.
Complete the SOBDMC quick test to access any DTCs. Note any KOEO and continuous memory DTCs.

Are any PCM or SOBDMC DTCs present?

Yes	No
GO to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONS for direction to REPAIR any DTCs after noting the following: DIAGNOSE the PCM 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 Wiring Diagrams article and identify the common cause such as SIGRTN, VREF, or VPWR. DIAGNOSE the SOBDMC circuit related DTCs before system related range or performance DTCs. For multiple circuit DTCs that are set as a result of a concern with more than one component, REFER to the Wiring Diagrams article and identify the common cause such as SIGRTN, VREF, or VPWR.	GO to NO DIAGNOSTIC TROUBLE CODES (DTCS) PRESENT SYMPTOM CHART INDEX for direction to the correct symptom chart in NO DIAGNOSTIC TROUBLE CODES (DTCS) PRESENT SYMPTOM CHARTS . NOTE: If the symptom is not listed, REFER to the applicable Service Information article or GO to Pinpoint Test Z (for intermittent PCM or SOBDMC system diagnostics).

Yes

GO to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONS for direction to REPAIR any DTCs after noting the following:
DIAGNOSE the PCM 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 Wiring Diagrams article and identify the common cause such as SIGRTN, VREF, or VPWR.
DIAGNOSE the SOBDMC circuit related DTCs before system related range or performance DTCs. For multiple circuit DTCs that are set as a result of a concern with more than one component, REFER to the Wiring Diagrams article and identify the common cause such as SIGRTN, VREF, or VPWR.

GO to NO DIAGNOSTIC TROUBLE CODES (DTCS) PRESENT SYMPTOM CHART INDEX for direction to the correct symptom chart in NO DIAGNOSTIC TROUBLE CODES (DTCS) PRESENT SYMPTOM CHARTS .

NOTE: If the symptom is not listed, REFER to the applicable Service Information article or GO to Pinpoint Test Z (for intermittent PCM or SOBDMC system diagnostics).