Inspection
ComponentsTerminals Of Ecu
TERMINALS OF ECU
1. CHECK 4 WHEEL DRIVE CONTROL ECU
Text in Illustration
*a
Component with harness connected
(4 Wheel Drive Control ECU)
-
-
(a) Measure the resistance and voltage according to the value(s) in the table
below.
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Power Supply Drive Circuit (C1257)
DESCRIPTION
The motor relay (semiconductor relay) is built into the hydraulic brake booster
and drives the pump motor based on a signal from the skid control ECU (master cylinder
solenoid).
DTC No.
DTC Detecting Condition
Trouble Areas
C1257
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Installation
INSTALLATION
PROCEDURE
1. INSTALL CHARCOAL CANISTER LEAK DETECTION PUMP SUB-ASSEMBLY
(a) Engage the 2 claws to install a new charcoal canister leak detection
pump sub-assembly to the charcoal canister assembly.
NOTICE:
Do not allow foreign matter such as grease, ...