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ABNORMAL SHIFTING [ET6A-EL, ET6AX-EL (E)]

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Troubleshooting item	Abnormal shifting
Description	•  Shifts incorrectly (incorrect shift pattern).
Possible cause	1.  Signal malfunction ―  APP sensor malfunction ―  BARO sensor malfunction ―  Brake switch malfunction ―  CKP sensor malfunction ―  ECT sensor malfunction ―  IAT sensor No.1 malfunction ―  MAF sensor malfunction 2.  Low-G (XY) sensor (built into sophisticated airbag sensor (SAS) control module) malfunction Note •  When driving on high-altitude roads, the TCM determines that the driving mode is the AAS mode, and may change to a different shift timing from the normal timing. •  When SPORT mode is selected, a gear lower than NORMAL mode is selected, and the gear is maintained for a longer period of time. (with drive selection switch) •  If the engine coolant temperature is low, a gear lower than when in NORMAL mode is selected.
System wiring diagram	•  Not applicable
Connector diagram	•  Not applicable

Diagnostic Procedure

Step	Inspection	Results	Action
1	INSPECT SIGNAL PARTS FOR MALFUNCTION •  Inspect the value at the following PCM PIDs using the M-MDS. (See PID/DATA MONITOR INSPECTION.) ―  APP1 (APP sensor No.1) ―  APP2 (APP sensor No.2) ―  BARO (BARO sensor) ―  ECT (ECT sensor) ―  IAT (IAT sensor No.1) (SKYACTIV-G, SKYACTIV-X) ―  IAT1 (IAT sensor No.1) (SKYACTIV-D) ―  MAF (MAF sensor) ―  ENG_ENG_RPM (CKP sensor) •  Is there any malfunction? (See PID/DATA MONITOR TABLE [PCM (SKYACTIV-G (E))].) (See PID/DATA MONITOR TABLE [PCM (SKYACTIV-X)].) (See PID/DATA MONITOR TABLE [PCM (SKYACTIV-D)].)	Yes	Repair or replace any malfunctioning parts according to the inspection result.
		No	Go to the next step.
2	INSPECT SIGNAL PARTS FOR MALFUNCTION •  Inspect the value at the following ESU PIDs using the M-MDS. (See PID/DATA MONITOR INSPECTION.) ―  BRK_SW (Brake switch) •  Is there any malfunction? (See PID/DATA MONITOR TABLE [ELECTRICAL SUPPLY UNIT (ESU) (E)].)	Yes	Repair or replace any malfunctioning parts according to the inspection result.
		No	Go to the next step.
3	VERIFY IF MALFUNCTION CAUSE IS LOW-G (XY) SENSOR •  Is there any malfunction?	Yes	Replace the sophisticated airbag sensor (SAS) control module. (See SAS CONTROL MODULE REMOVAL/INSTALLATION [STANDARD DEPLOYMENT CONTROL SYSTEM].) (See SAS CONTROL MODULE REMOVAL/INSTALLATION [TWO-STEP DEPLOYMENT CONTROL SYSTEM].)
		No	Symptom troubleshooting is completed.