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)
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(a) Measure the resistance and voltage according to the value(s) in the table
below.
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Parts Location
PARTS LOCATION
ILLUSTRATION
*A
for Hydraulic Brake Booster
*B
for Vacuum Brake Booster
*C
w/ Toyota Safety Sense P
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*1
BRAKE BOOSTER ASSEMBLY (SKID CONTROL ECU)
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Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS
1. DESCRIPTION
HINT:
A momentary interruption (open circuit) in the connectors and/or wire harness
between the sensors and ECUs can be detected through the ECU data monitor function
of the Techstream.
(a) Turn the ignition switch off.
(b) Connect the Techstre ...