Isuzu RODEO - Chart TA-1: ABS Works Frequently But Vehicle Does Not Decelerate (Use TECH 2); Chart A-2: Uneven Braking Occurs While ABS Works; Chart TA-2: Uneven Braking Occurs While ABS Works (Use TECH 2)

5A–31
BRAKE CONTROL SYSTEM
Chart TA-1 ABS Works Frequently But Vehicle Does Not Decelerate (Use TECH 2)
Step
Action
Yes No
1 1. Connect TECH 2.
2. Make sure of the output conditions of each sensor.
Is the output of each sensor normal?
Go to Step 2
Replace wheel
speed sensor.
Go to Step 3
2 Return to Chart A-1.
Was the Chart A-1 finished?
Go to Step 3 Go to Step 2
3 Reconnect all components, ensure all components are properly
mounted.
Was this step finished?
Repeat the “Basic
diagnostic flow
chart”
Go to Step 3
Chart A-2 Uneven Braking Occurs While ABS Works
Step
Action
Yes No
1 Is there play in each or any sensor? Repair.
Go to Step 5
Go to Step 2
2 Damage or powdered iron sticking to each or any sensor/sensor
ring?
Repair.
Go to Step 5
Go to Step 3
3 Is the output of each sensor normal? (Refer to chart C-1 or TC-1)
Go to Step 4
Replace sensor
or repair harness.
Go to Step 5
4 Is brake pipe connecting order correct?
Replace H/U.
Go to Step 5
Reconnect brake
pipe correctly.
Go to Step 5
5 Reconnect all components, ensure all components are properly
mounted.
Was this step finished?
Repeat the “Basic
diagnostic flow
chart”
Go to Step 5
Chart TA-2 Uneven Braking Occurs While ABS Works (Use TECH 2)
Step
Action
Yes No
1 1. Connect TECH 2.
2. Make sure of the output conditions of each sensor.
Is the output of each sensor normal?
Go to Step 2 Go to Step 3
2 Check piping by TECH 2 ACTUATOR TEST
Is the piping normal?
Replace EHCU.
Go to Step 4
Repair the pipe.
Go to Step 4
3 Repair and check the wheel speed sensor (Refer to chart B-20 to
B-23 , C-1 or TC-1).
Was the each chart finished?
Go to Step 4 Go to Step 3
4 Reconnect all components, ensure all components are properly
mounted.
Was this step finished?
Repeat the “Basic
diagnostic flow
chart”
Go to Step 4