Diagnosis Procedure
Regarding Wiring Diagram information, refer to SEC-147, "Wiring Diagram" or SEC-128, "Wiring Diagram".
1.CHECK KEY SLOT POWER SUPPLY CIRCUIT
Turn ignition switch OFF.
Disconnect key slot connector.
Check voltage between slot harness connector M40 terminal 1, 5 and ground.


2.CHECK KEY SLOT GROUND CIRCUIT
Check continuity between key slot harness connector M40 terminal 7 and ground.


3.CHECK INTERMITTENT INCIDENT
Refer to GI-41, "Intermittent Incident".
Inspection End.
IPDM E/R (intelligent power distribution module engine room)
Key slot illuminationB257B, B257C ambient sensor
Description
COMPONENT DESCRIPTION
Ambient Sensor
The ambient sensor (1) is installed to the front bumper
reinforcement.
It detects ambient temperature and converts it into a resistance
value which is then input into the A/C auto amp.
Ambient Sensor Circuit
AMBIENT TEMPERATUR ...
Heated steering wheel switch (if so equipped)
The heated steering wheel system is designed to
operate only when the surface temperature of the
steering wheel is below 68F (20C).
Push the heated steering wheel switch to warm
the steering wheel after the engine starts. The
indicator light will come on.
If the surface temperature of ...
Active noise cancellation/Active sound control (if so equipped).
Active noise cancellation
Front and rear microphones
This system uses three microphones 1 located
inside the vehicle to detect engine booming
noises. The system then automatically generates
a noise canceling sound through the speakers
and woofer to reduce engine booming noise.
NOTE:
To o ...