Chart C-1-4 Rr Sensor Output Inspection Procedure; Chart Tc-1 Sensor Output Inspection Procedure (Use Tech 2) - Isuzu 2000 Trooper Workshop Manual

Chart C-1-4 RR Sensor Output Inspection Procedure

Step
1 1. Turn the key off.
2. Disconnect EHCU connector.
3. Jack up the vehicle with all four wheels off the ground.
Measure the AC voltage between EHCU connector terminals
while turning RR wheel at a speed of 1 RPS:
Is voltage between EHCU connector terminals 2 and 3 under 200
mV?
2 1. Disconnect the wheel speed sensor.
2. Measure resistance between the wheel speed sensor
connector terminals 1 and 2.
Is resistance between connector (F-2) terminals 1 and 2 within
1.3k - 1.9k ohms?
3 Reconnect all components and ensure all components are
properly mounted.
Was this step finished?

Chart TC-1 Sensor Output Inspection Procedure (Use TECH 2)

Step
1 1. Connect TECH 2.
2. While driving the vehicle, check the wheel speed of each
sensor by Data List.
Is the vehicle speed value is normal?
2 Check the sensor harness for suspected disconnection (Check
while shaking harness/connector).
Is the sensor harness connection normal?
3 While driving the vehicle, check the wheel speed of each sensor
by Data List.
Is the vehicle speed value is normal?
4 Check sensor roter.
Is the sensor roter normal?
5 While driving the vehicle, check the wheel speed of each sensor
by Data List.
Is the vehicle speed value is normal?
6 Reconnect all components, ensure all components are properly
mounted.
Was this step finished?
Action
Action
BRAKE CONTROL SYSTEM
Yes
Go to Step 2
Connector is
faulty, or open or
short circuit of
harness between
wheel speed
sensor connector
and EHCU.
Inspect and
correct the
connector or
harness
Go to Step 3
Repeat the "Basic
diagnostic flow
chart."
Yes
Go to Step 6
Replace speed
sensor.
Go to Step 3
Go to Step 6
Go to Step 6
Go to Step 6
Repeat the "Basic
diagnostic flow
chart."
5A–43
No
Ok.
Go to Step 3
Wheel speed
sensor is faulty.
Replace the
wheel speed
sensor.
Go to Step 3
Go to Step 3
No
Go to Step 2
Repair.
Go to Step 6
Go to Step 4
Replace sensor
roter.
Go to Step 5
Repair harness or
connector
between EHCU
and speed
sensor.
Go to Step 6
Go to Step 6