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DOES NOT SHIFT TO 5GR OR 6GR [EV6A-EL, EV6AX-EL]

id0503n9101100

Troubleshooting item

Does not shift to 5GR or 6GR

Description

•  Vehicle does not upshift from 4GR to 5GR or 5GR to 6GR even though vehicle speed is increased.

•  At a vehicle speed range where the transaxle should shift up to 5GR and 6GR gears in D position based on the shift pattern, the transaxle does not shift to 5GR and 6GR gears by gradually releasing the accelerator pedal.

Possible cause

1.  Signal malfunction

―  APP sensor malfunction

―  BARO sensor 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

Troubleshooting item	Does not shift to 5GR or 6GR
Description	• Vehicle does not upshift from 4GR to 5GR or 5GR to 6GR even though vehicle speed is increased. • At a vehicle speed range where the transaxle should shift up to 5GR and 6GR gears in D position based on the shift pattern, the transaxle does not shift to 5GR and 6GR gears by gradually releasing the accelerator pedal.
Possible cause	1. Signal malfunction ― APP sensor malfunction ― BARO sensor 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)

―  IAT1 (IAT sensor No.1)

―  MAF (MAF sensor)

―  ENG_RPM (CKP sensor)

•  Is there any malfunction?
(See PID/DATA MONITOR TABLE [PCM (SKYACTIV-G (E))].)

Yes

Repair or replace any malfunctioning parts according to the inspection result.

No

Go to the next step.

2

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.

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) ― IAT1 (IAT sensor No.1) ― MAF (MAF sensor) ― ENG_RPM (CKP sensor) • Is there any malfunction? (See PID/DATA MONITOR TABLE [PCM (SKYACTIV-G (E))].)	Yes	Repair or replace any malfunctioning parts according to the inspection result.
1		No	Go to the next step.
2	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].)
2		No	Symptom troubleshooting is completed.