TROUBLESHOOTING ITEM

Excessive shift shock is felt when upshifting and downshifting

DESCRIPTION

• Excessive shift shock is felt when depressing accelerator pedal to accelerate at upshifting.

• During cruising, excessive shift shock is felt when depressing accelerator pedal at downshifting.

POSSIBLE CAUSE

• Insufficient TCM learning

• Signal malfunction

• APP sensor malfunction

• Poor installation or worn of engine mount, suspension

Item (definition)

Unit/Condition

Definition

Condition/Specification (Reference)

APP

%

Accelerator pedal position

• Accelerator pedal released: Approx. 0%

• Accelerator pedal depressed: Approx. 100%

STEP

INSPECTION

ACTION

1

• Is the malfunction symptom (shift shock/shifting time) at the same level compared to a vehicle of the same model?

Yes

Symptom troubleshooting is completed.

No

Go to the next step.

2

• Perform the initial learning.

  (See INITIAL LEARNING [FW6A-EL].)

• Does the symptom disappear?

Yes

Symptom troubleshooting is completed.

No

Go to the next step.

3

• Is the operation pressure normal?

Yes

Go to the next step.

No

Replace the control valve body.

(See CONTROL VALVE BODY REMOVAL/INSTALLATION [FW6A-EL].)

4

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

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

• APP (APP sensor)

• Is there any malfunction?

Yes

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

No

Go to the next step.

5

• Is there any malfunction?

Yes

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

(See DTC TABLE [SKYACTIV-G 2.5].)

No

Symptom troubleshooting is completed.