Honda Accord: Circuit Diagram
Eighth generation (2008–2012) / Honda Accord MK8 2008-2012 Service Manual / Body Electrical / Immobilizer System / Circuit Diagram

System Description
The vehicle is equipped with a Type Vll (GEN 5) immobilizer system that will
disable the vehicle unless a programmed
ignition key is used.
This system consists of a transponder combined with a k ...
DTC Troubleshooting
DTC U0155: Immobilizer-keyless Control Unit
Lost Communication With Gauge Control
Module
NOTE: If you are troubleshooting multiple DTCs, be sure
to follow the instructions in B-CAN System Diagnosi ...
See also:
Alternator and Regulator
Circuit Troubleshooting
Special Tools Required
Alternator, Regulator, Battery, and Starter Tester
OTC3131*
^Available through the Honda Tool and Equipment
Program 888-424-6857
1. Make sure the battery connections are go ...
Light Switches
• Manual Operation
Rotating the light switch turns the lights on
and off, regardless of the position of the
ignition switch*1.
• High beams
Push the lever forward until you hear a click.
...
Mode Control Motor Test
NOTE: Before testing the motor, check for HVAC DTCs
(see page 21-101).
1. Disconnect the 7P connector from the mode control
motor.
Incorrectly applying power and ground to the mode
control mo ...