Opel Frontera UE. Manual - part 723
BRAKE CONTROL SYSTEM
5A–23
Basic Diagnostic Flow Chart
Basic Inspection Procedure
1. Basic Inspection of Service Brake
2. Ground Inspection
Step
Action
Yes
No
1
1. Customer complaint.
2. Questioning to customer.
3. Basic inspection (Refer to “Basic inspection procedure")
Using TECH 2?
Go to Step 2
Go to Step 4
2
Make sure of DTC by mode “F0: Diagnostic Trouble Codes".
Is EHCU including DTC?
Clear code and
check for
repeatability.
Go to Step 3
Go to Step 5
3
1. Repair of faulty part.
2. Elimination of DTC.
3. Inspection of “ABS" W/L Illumination pattern with ignition SW
“ON".
4. Test drive.
Does trouble repeat?
Repeat the
diagnosis it the
symptom or
DTC appears
again
Go to Step 1
Go to Step 5
4
Check if the DTC is stored or not.
Is EHCU including DTC?
Clear code and
check for
repeatability
Go to Step 3
Trouble
diagnosis
based on
symptom (Refer
to “SYMPTOM
DIAGNOSIS")
Go to Step 3
5
1. Reconnect all components. Ensure all component are
properly mounted.
2. Clear diagnostic trouble code.
Was this step finished?
Finished
Go to Step 5
Step
Action
Yes
No
1
Is the fluid level normal?
Go to Step 2
Replenish with
fluid
Go to Step 2
2
Does fluid leak?
Repair
Go to Step 3
Go to Step 3
3
Is the booster function normal?
Go to Step 4
Repair
Go to Step 4
4
Is the pad and rotor normal?
Go to Step 5
Repair
Go to Step 5
5
Reconnect all components. Ensure all component are properly
mounted.
Was this step finished?
Finished
Go to Step 5
Step
Action
Yes
No
1
Does ABS—related ground points normally?
Go to Step 2
Repair
Go to Step 2
2
Reconnect all components. Ensure all component are properly
mounted.
Was this step finished?
Finished
Go to Step 2