2007 ISUZU KB P190 Workshop Repair Manual

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ISUZU KB P190 2007  Workshop Repair Manual 5A-40   BRAKE CONTROL SYSTEM 
Basic Inspection Procedure 
1. Basic Inspection of Service Brake 
Step Action 
Value(s) Yes  No 
1  Is the fluid level normal? 
-  Go to Step 2 Replenish with 
fluid 
Go

Page 634 of 6020

ISUZU KB P190 2007  Workshop Repair Manual BRAKE CONTROL SYSTEM   5A-41 
Wheel Speed Sensor Inspection Procedure 
Procedure  
 1.Ignition "OFF". 
  2.Disconnect each of the wheel speed sensors. 
  3.Connect the resistance (50 Ω~100 Ω) as f

Page 635 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 5A-42   BRAKE CONTROL SYSTEM 
Symptom Diagnosis 
The symptoms that cannot be indicated by warning  
lamp can be divided into the following six categories:  
  1. ABS works frequently but vehicle does

Page 636 of 6020

ISUZU KB P190 2007  Workshop Repair Manual BRAKE CONTROL SYSTEM   5A-43 
Uneven Braking Occurs While ABS Works 
 
Step Action  Value(s) Yes No 
1  Is there play in each or any sensor? 
- Repair. 
Go to Step 5  Go to Step 2 
2  Damage or powder

Page 637 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 5A-44   BRAKE CONTROL SYSTEM 
Brake Pedal Feed Is Abnormal 
 
Step Action  Value(s) Yes  No 
1  Is the stop light actuated when the brake pedal is 
depressed?  -  Go to Step 2  Go to Step 3 
2    1. T

Page 638 of 6020

ISUZU KB P190 2007  Workshop Repair Manual BRAKE CONTROL SYSTEM   5A-45 
Braking Sound (From EHCU) Is Heard While Not Braking 
 
Step Action  Value(s)  Yes No 
1  Is this the first vehicle start after engine start? 
- It is self 
checking  sou

Page 639 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 5A-46   BRAKE CONTROL SYSTEM 
No ABS Warning Lamp 
 
Step Action  Value(s) Yes  No 
1  Check the meter fuse for the instrument cluster 
ignition feed circuit.  
Is the fuse OK?  -  Go to Step 3  Go to

Page 640 of 6020

ISUZU KB P190 2007  Workshop Repair Manual BRAKE CONTROL SYSTEM   5A-47 
ABS Warning Lamp ON Steady 
 
Step Action  Value(s)  Yes   No 
1    1. Check the ABS warning lamp lighting circuit for a 
short. 
  2. If a problem found, repair as neces