Isuzu 1999 RODEO, General Description Manual

Page: 54 / 57

5A–54
BRAKE CONTROL SYSTEM
Unit Inspection Procedure
This section describes the following inspection proce-
dures referred to during “SYMPTOM DIAGNOSIS” and
“DIAGNOSIS BY ‘ABS’ WARNING LIGHT ILLUMINA-
TION PATTERN” :
without TECH 2 with TECH 2
Sensor Output Inspection Chart C-1-1 to C-1-3 Chart TC-1
Chart C-1-1 FL Sensor Output Inspection Procedure
Step
Action
Yes No
1 1. Turn the key off.
2. Disconnect coil integrated module connector.
3. Jack up the vehicle with all four wheels off the ground.
Measure the AC voltage between coil integrated module
connector terminals while turning FL wheel at a speed of 1
RPS:
Is the check between coil integrated module connector (C-4)
terminals 2 and 10 than under 200 mV?
Go to Step 2
OK.
Go to Step 3
2 1. Disconnect the wheel speed sensor.
2. Measure resistance between the wheel speed sensor
connector terminals 1 and 2.
Is the check between connector (C-13) terminals 1 and 2 within
2.0k - 2.8k ohms?
Connector is
faulty, or open or
short circuit of
harness between
wheel speed
sensor connector
and coil
integrated
module.
Inspect and
correct the
connector or
harness.
Go to Step 3
Wheel speed
sensor is faulty.
Replace the
wheel speed
sensor.
Go to Step 3
3 Reconnect all components, ensure all components are properly
mounted.
Was this step finished?
Repeat the “Basic
diagnostic flow
chart” Go to Step 3