NOTE: Drive the vehicle on a straight section of road, not on a lift.
31. Check for DTCs with the HDS.
Is DTC 11, 13, 15, or 17 indicated?
YES -
Check for loose terminals in the VSA modulator-control unit 46P connector. If the VSA modulator-control unit was updated, substitute a
known-good VSA modulator-control unit See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Traction Control
Module/Service and Repair, then retest. If the VSA modulator-control unit was substituted, go to step 1.
NO -
If the VSA modulator-control unit was updated, troubleshooting is complete. If the VSA modulator-control unit was substituted, replace the
original VSA modulator-control unit See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Traction Control
Module/Service and Repair. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.?
15-1
SH AWD DTC Troubleshooting: 15-1
DTC 15-1:
Longitudinal Acceleration Sensor Malfunction
NOTE: Before you troubleshoot, review the general troubleshooting information See: Transmission and Drivetrain/Differential Assembly/Testing
and Inspection/Initial Inspection and Diagnostic Overview.
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Test-drive the vehicle with an assistant. When accelerating, check the LONGITUDINAL ACCELERATION SENSOR in the DATA LIST
with the HDS.
Does the sensor value change when acceleration?
YES -
Go to step 4.
NO -
Replace the yaw rate-lateral/longitudinal acceleration sensor See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Yaw
Rate Sensor/Service and Repair.?
4. Park the vehicle on a level surface.
5. Check the LONGITUDINAL ACCELERATION SENSOR in the DATA LIST with the HDS.
Is there 0.1 G or less?
YES -
Go to step 6.
NO -
Do the yaw rate-lateral/longitudinal acceleration neutral position memorization See: Brakes and Traction Control/Antilock Brakes / Traction
Control Systems/Yaw Rate Sensor/Testing and Inspection. If the DTC returns, replace the SH-AWD control unit See: Powertrain
Management/Transmission Control Systems/Relays and Modules - Transmission and Drivetrain/Relays and Modules - Differential/Control
Unit/Service and Repair.?
6. Test-drive the vehicle for 2 minutes in a vehicle speed is kept constant at 19 mph (30 km/h).
7. Check for DTCs with the HDS.
Is DTC 15-1 indicated?
