General Information
Component Location
General Description
The Free-Running Differential (FRRD) uses an air pump that is actuated by the TCCM to control 4WD/2WD operation.
Air pump supply compressed air to FRRD and has a pressure switch inside air pump.
When compressed air is supplied to FRRD from air pump, power is transformed into front wheels by engagement of internal dog catcher.
DTC Description
TCCU sets DTC P1759 if TCCM detects Hub Solenoid Valve control circuit is open or short to ground.
DTC Detecting Condition
Specification
Diagnostic Circuit Diagram