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

• Signal malfunction

• APP sensor malfunction

• BARO sensor malfunction

• CKP sensor malfunction

• IAT sensor No.1 malfunction

• MAF sensor malfunction

• Low-G (XY) sensor (built into SAS control module) malfunction

NOTE:

• If a tire with a different diameter than the standard tire is installed, 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)

Item (definition)

Unit/Condition

Definition

Condition/Specification (Reference)

APP

%

Accelerator pedal position

• Accelerator pedal released: Approx. 0%

• Accelerator pedal depressed: Approx. 100%

BARO

KPa {MPa}, mBar {Bar}, psi, in H20

Barometric pressure

• Displays BARO

V

• Ignition switched ON (at sea level): Approx. 4.08 V

IAT

°C, °F

Intake air temperature (No.1)

• Displays IAT (No.1)

V

• IAT is 20 °C {68 °F}: Approx. 2.70 V

• IAT is 40 °C {104 °F}: Approx. 1.80 V

• IAT is 60 °C {140 °F}: Approx. 1.20 V

MAF

g/Sec

Mass air flow

• Displays MAF

V

• Switch ignition ON (engine off) (MAF: 0.59 g/s {0.078 lb/min}): Approx. 0.72 V

• Idle (after warm up) (MAF: 2.17 g/s {0.287 lb/min}): Approx. 0.86 V

• Racing (engine speed is 2,000 rpm) (MAF: 4.73 g/s {0.626 lb/min}): Approx. 1.07 V

RPM

RPM

Engine speed

• Displays engine speed

STEP

INSPECTION

ACTION

1

• Inspect the value at the following PCM PIDs using the M-MDS.

  (See ON-BOARD DIAGNOSTIC TEST [SKYACTIV-G 2.5].)

• APP (APP sensor)

• BARO (BARO sensor)

• IAT (IAT sensor No.1)

• MAF (MAF sensor)

• RPM (CKP sensor)

• Is there any malfunction?

Yes

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

No

Go to the next step.

2

• Is there any malfunction?

Yes

Replace the 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.