DTC Logic
Diagnosis Procedure
1.CHECK DISPLAY UNIT POWER SUPPLY AND GROUND CIRCUIT
Check display unit power supply and ground circuit
2.CHECK CONTINUITY OF COMMUNICATION CIRCUIT
3.CHECK COMMUNICATION SIGNAL
4.CHECK COMMUNICATION SIGNAL
Check signal between display unit harness connector M142 terminal 10 and ground with an oscilloscope or CONSULT.
Steering switch
Description
When one of the steering wheel audio control switches is pushed, the
resistance in the steering wheel audio
control switch circuit changes, depending on which button is pushed.
Diagnosis Procedure
1.CHECK STEERING SWITCH RESISTANCE
Disconnect steering switch connector M88. ...
Protect your vehicle from corrosion
Wash and wax your vehicle often to keep the
vehicle clean.
Always check for minor damage to the paint
and repair it as soon as possible.
Keep drain holes at the bottom of the doors
open to avoid water accumulation.
Check the underbody for accumulation of
sand, dirt or salt. If prese ...
P1574 ASCD vehicle speed sensor
Description
The ECM receives two vehicle speed signals via the CAN communication line.
One is sent from combination
meter, and the other is from TCM (Transmission control module). The ECM uses
these signals for ASCD control.
Refer to EC-68, "System Diagram" for ASCD functions.
D ...