17. Measure the voltage between SH-AWD control unit connector terminals B2 and B5.
Is there voltage?
YES -
Repair a short to power in the wire between SH-AWD control unit connector terminal B5 and the left solenoid 4P connector.?
NO -
Go to step 18.
18. Measure the voltage between SH-AWD control unit connector terminals B2 and B4.
Is there voltage?
YES -
Repair a short to power in the wire between SH-AWD control unit connector terminal B4 and the left solenoid 4P connector.?
NO -
Update the SH-AWD control unit if it does not have the latest software See: Powertrain Management/Transmission Control Systems/Relays and
Modules - Transmission and Drivetrain/Relays and Modules - Differential/Control Unit/Testing and Inspection/SH-AWD Control Unit Update, or
substitute a known-good 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, 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 See: Powertrain Management/Transmission Control Systems/Relays and Modules - Transmission and
Drivetrain/Relays and Modules - Differential/Control Unit/Service and Repair.?
TPMS System
TPMS DTC Troubleshooting: 51, 53, 55, 57
DTC 51, 53, 55, 57:
Tire Pressure Sensor Registration Error
NOTE: The following DTCs will only set during initialization with the HDS.
1. Turn the ignition switch to ON (II).
2. Check the DTC indicated to the tire location to make sure the wheel is a TPMS type with the tire pressure sensor.
