15-1

SH AWD DTC Troubleshooting: 15-1

DTC 15-1:

Longitudinal Acceleration Sensor Malfunction

NOTE: Before you troubleshoot, review the general troubleshooting information Initial Inspection and Diagnostic Overview.

1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.

2. Clear the DTC with the HDS.

3. Test-drive the vehicle for 2 minutes in a vehicle speed is kept constant at 19 mph (30 km/h).

4. Check for DTCs in the VSA system with the HDS.

Are any longitudinal acceleration sensor DTCs indicated?

YES -

Go to the indicated DTC's troubleshooting.�

NO -

Go to step 5.

5. Check for DTCs with the HDS.

Is DTC 15-1 indicated?

YES -

Go to step 6.

NO -

Intermittent failure, the system is OK at this time.�

6. Test-drive the vehicle with an assistant. When accelerating, check the LONGITUDINAL ACCELERATION SENSOR in the SH-AWD mode menu DATA LIST with the HDS.

Does the sensor value change when acceleration?

YES -

Go to step 7.

NO -

Update the SH-AWD control unit if it does not have the latest software SH-AWD Control Unit Update, or substitute a known-good SH-AWD control unit Service and Repair, and recheck. If the symptom/indication goes away with the updated SH-AWD control unit, troubleshooting is complete. If the symptom/indication goes away with a known-good SH-AWD control unit, replace the original SH-AWD control unit Service and Repair.�

7. Park the vehicle on a level surface.

8. Check the LONGITUDINAL ACCELERATION SENSOR in the SH-AWD mode menu DATA LIST with the HDS.

Is there 0.1G or less?

YES -

Go to step 9.

NO -

Do the yaw rate-acceleration neutral position memorization Testing and Inspection, and recheck.

9. Check the LONGITUDINAL ACCELERATION SENSOR in the VSA DATA LIST with the HDS.

Is there 0.1G or less?

YES -

Update the SH-AWD control unit if it does not have the latest software SH-AWD Control Unit Update, or substitute a known-good SH-AWD control unit Service and Repair, and recheck. If the symptom/indication goes away with the updated SH-AWD control unit, troubleshooting is complete. If the symptom/indication goes away with a known-good SH-AWD control unit, replace the original SH-AWD control unit Service and Repair.�

NO -

Replace the yaw rate-acceleration sensor Service and Repair.�