Reference Values
TERMINAL LAYOUT

PHYSICAL VALUES

Audio unit
Bose speaker AMPPower supply and ground circuit
BCM
BCM : Diagnosis Procedure
1. CHECK FUSE AND FUSIBLE LINK
Check if the following BCM fuses or fusible link are blown.
2. CHECK POWER SUPPLY CIRCUIT
Turn ignition switch OFF.
Disconnect BCM.
Check voltage between BCM harness connector and ground.
3. CHECK GROUND CIRCUIT
Che ...
Instrument Panel
Vent
Headlight/fog light/turn signal switch
Supplemental front-impact air bag. Horn
Meters and gauges. Warning and indicator lights. Vehicle information
display
Paddle shifters (if so equipped)
Wiper and washer switch
Audio controls*. Navigation controls*
Hazard warning flash ...
Cooling fan control
System Diagram
System Description
INPUT/OUTPUT SIGNAL CHART
*1: The ECM determines the start signal status by the signals of engine speed
and battery voltage.
*2: This signal is sent to ECM via the CAN communication line.
SYSTEM DESCRIPTION
The ECM controls the cooling fan correspon ...