Mitsubishi Grandis. Manual - part 908
TROUBLESHOOTING
ANTI-SKID BRAKING SYSTEM (ABS)
35B-47
Code No.C1276: Valve system
OPERATION
• The ABS-ECU contains the power supply circuit
(terminal 1) for the solenoid valve. The solenoid
valve is energized by the valve relay, which is
incorporated in the ABS-ECU.
• The valve relay, which is incorporated in the
ABS-ECU, is always energizing the solenoid
valve unless the initial check is in progress when
the ignition switch is turned on, or the recurrent
system check is in progress.
DIAGNOSIS CODE SET CONDITIONS
These diagnosis codes will be set under the cases
below.
• The ABS-ECU monitors the power supply voltage
to the solenoid valve. If the voltage is lower than
the predetermined value, the ECU sets this
diagnosis code as a failure in the valve relay
circuit.
PROBABLE CAUSES
The most likely causes for these diagnosis codes to
set are:
• Damaged wiring harness or connector
• Malfunction of the hydraulic unit (integrated with
ABS-ECU)
3
FUSIBLE
LINK
4
FUSIBLE
LINK
ABS-ECU
SOLENOID
VALVE POWER
SOURCE
SOLENOID
VALVE POWER
SOURCE
SOLENOID VALVE
HYDRAULIC UNIT
MOTOR
POWER
SOURCE
MOTOR
POWER
SOURCE
Wire colour code
B : Black LG : Light green G : Green L : Blue
W : White Y : Yellow SB : Sky blue BR : Brown
O : Orange GR : Gray R : Red P : Pink V : Violet
Solenoid Valve and Motor Power Supply Circuit