Description

Error vehicle speed signal received from PCM

Detection condition

• Front body control module (FBCM) receives the vehicle speed signal error from the PCM for 5 s or more with the ignition switched ON (engine off or on).

Fail-safe function

Not applicable

Possible cause

• ABS wheel-speed sensor malfunction

• PCM malfunction

• Front body control module (FBCM) malfunction

System wiring diagram

Not applicable

Step

Inspection

Action

1

• Clear the DTC for the front body control module (FBCM) using the M-MDS.

  (See CLEARING DTC [FRONT BODY CONTROL MODULE (FBCM)].)

• Switch the ignition ON (engine off or on) and wait for 5 s or more.

• Retrieve the front body control module (FBCM) DTCs using the M-MDS.

  (See DTC INSPECTION [FRONT BODY CONTROL MODULE (FBCM)].)

• Is the same DTC displayed?

Yes

Go to the next step.

No

Go to Step 7.

2

• Retrieve the DSC HU/CM DTCs using the M-MDS.

  (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)

• Are any DTCs displayed?

Yes

Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.

(See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)].)

No

Go to the next step.

3

• Retrieve the PCM DTCs using the M-MDS.

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

• Are any DTCs displayed?

Yes

Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.

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

No

Go to the next step.

4

• Inspect the ABS wheel-speed sensor (LF), (RF), (LR) and (RR).

  (See FRONT ABS WHEEL-SPEED SENSOR INSPECTION.)

  (See REAR ABS WHEEL-SPEED SENSOR INSPECTION.)

• Are ABS wheel-speed sensor (LF), (RF), (LR) and (RR) normal?

Yes

Go to the next step.

No

Replace the ABS wheel-speed sensor, then go to Step 6.

(See FRONT ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION.)

(See REAR ABS WHEEL-SPEED SENSOR REMOVAL/INSTALLATION.)

5

• Clear the DTC for the front body control module (FBCM) using the M-MDS.

  (See CLEARING DTC [FRONT BODY CONTROL MODULE (FBCM)].)

• Switch the ignition ON (engine off or on) and wait for 5 s or more.

• Retrieve the front body control module (FBCM) DTCs using the M-MDS.

  (See DTC INSPECTION [FRONT BODY CONTROL MODULE (FBCM)].)

• Is the same DTC displayed?

Yes

Replace the PCM, then go to the next step.

(See PCM REMOVAL/INSTALLATION [SKYACTIV-G 2.5].)

No

Go to Step 7.

6

• Clear the DTC for the front body control module (FBCM) using the M-MDS.

  (See CLEARING DTC [FRONT BODY CONTROL MODULE (FBCM)].)

• Switch the ignition ON (engine off or on) and wait for 5 s or more.

• Retrieve the front body control module (FBCM) DTCs using the M-MDS.

  (See DTC INSPECTION [FRONT BODY CONTROL MODULE (FBCM)].)

• Is the same DTC displayed?

Yes

Repeat the inspection from Step 1.

• If the malfunction recurs, replace the front body control module (FBCM).

  (See FRONT BODY CONTROL MODULE (FBCM) REMOVAL/INSTALLATION.)

Go to the next step.

No

Go to the next step.

7

• Are any other DTCs displayed?

Yes

Repair or replace the malfunctioning part according to the applicable DTC troubleshooting.

(See DTC TABLE [FRONT BODY CONTROL MODULE (FBCM)].)

No

DTC troubleshooting completed.