Carry Out The Pcm And TCM Quick Test

NOTE: If unable to access the diagnostic trouble codes (DTCs), GO to PINPOINT TEST QA . For additional information on retrieving malfunction indicator lamp (MIL) and non-MIL DTCs, refer to QUICK TEST .

NOTE: Do not carry out consecutive quick tests without turning the key 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 TCM quick test to access any DTCs. Note any KOEO and continuous memory DTCs.

Are any PCM or TCM DTCs present?

Yes	No
If DTC P0106, P1A0C, P2195 or P2279 is retrieved and the engine runs rough or backfires, CHECK the positive crankcase ventilation (PCV) system for damage, leaks, cracks or a disconnected PCV valve or hose. REPAIR as necessary. GO to DTC CHART for direction to REPAIR any DTCs after noting the following: REPAIR DTCs in the following order (for each mode, begin diagnosis with the first DTC output). Any PCM KOEO DTCs Any PCM KOER DTCs Any TCM KOEO DTCs Any PCM continuous memory DTCs (RETRIEVE any available freeze frame data and disregard any identical/related continuous DTCs or DTCs already repaired). Any TCM continuous memory DTCs (RETRIEVE any available freeze frame data and disregard any identical/related continuous DTCs or DTCs already repaired).	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, GO to PINPOINT TEST Z (for intermittent PCM or TCM system diagnostics).

Yes

If DTC P0106, P1A0C, P2195 or P2279 is retrieved and the engine runs rough or backfires, CHECK the positive crankcase ventilation (PCV) system for damage, leaks, cracks or a disconnected PCV valve or hose. REPAIR as necessary.
GO to DTC CHART for direction to REPAIR any DTCs after noting the following:
REPAIR DTCs in the following order (for each mode, begin diagnosis with the first DTC output).

Any PCM KOEO DTCs
Any PCM KOER DTCs
Any TCM KOEO DTCs
Any PCM continuous memory DTCs (RETRIEVE any available freeze frame data and disregard any identical/related continuous DTCs or DTCs already repaired).
Any TCM continuous memory DTCs (RETRIEVE any available freeze frame data and disregard any identical/related continuous DTCs or DTCs already repaired).

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, GO to PINPOINT TEST Z (for intermittent PCM or TCM system diagnostics).