Self-Diagnosis

Self-diagnosis
When a problem is detected by self-diagnosis, the system does the following:
^ Turns the VTM-4 indicator on.
^ Memorizes the DTC.
^ Stops 4WD control and puts the vehicle back in 2WD (FWD).
^ Reduces engine torque to suit the driving conditions when the abnormality was detected.

VTM-4 Controllers for VSA and Non-VSA Models
LX and EX are non-VSA models. EX-L models are equipped VSA. If a VTM-4 controller for a non-VSA model is installed in a model with VSA, DTC 45 will be set. The VTM-4 controller for a model with VSA does not have a wire in the A19 terminal of the VTM-4 connector A. Be sure to install the correct VTM-4 controller for the model you are working on.