Mazda 3 Workshop Manual page 378

Mazda 3 Workshop Manual – Engine + Wiring Diagrams + Diagnostic Trouble Codes
VERIFY FREEZE FRAME DATA HAS
BEEN RECORDED
1
• Has FREEZE FRAME DATA been
recorded?
VERIFY RELATED REPAIR
INFORMATION AVAILABILITY
• Verify related service repair information
2
availability.
• Is any related repair information available?
CLASSIFY HIGH INPUT OR LOW INPUT
• Connect the WDS or equivalent to DLC-2.
• Access BOO PID.
3
• Verify BOO PID during brake pedal
operation.
• Is BOO PID always OFF?
INSPECT BRAKE SWITCH CONNECTOR
FOR POOR CONNECTION
• Turn the ignition switch off.
• Disconnect the brake switch connector.
4
• Inspect for poor connection (such as
damaged/pulled-out pins, corrosion).
• Is there malfunction?
CLASSIFY BRAKE SWITCH OR CIRCUIT
• Connect the WDS or equivalent to DLC-2.
• Access BOO PID.
5
• Connect a jumper wire between brake
switch terminal A and D.
• Is BOO PID on?
INSPECT BRAKE SWITCH
• Perform brake switch inspection.
6
(See BRAKE SWITCH
• Is brake switch normal?
INSPECT BRAKE SWITCH POWER
CIRCUIT FOR OPEN CIRCUIT
• Measure the voltage between brake switch
7
terminal A and body ground.
• Is the voltage B+?
Downloaded from
Yes Go to the next step.
No
Yes
No Go to the next step.
Yes Go to the next step.
No Go to Step 10.
Yes
No Go to the next step.
Yes Go to the next step.
No Go to Step 7.
Yes Go to Step 14.
INSPECTION.)
No Replace brake switch, then go to Step 14.
Yes Go to the next step.
No
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Record the FREEZE FRAME DATA on repair
order, then go to the next step.
Perform repair or diagnosis according to the
available repair information.
• If the vehicle is not repaired, go to the next
step.
Repair or replace the terminal, then go to Step
14.
Repair or replace brake switch power circuit
for open, then Go to Step 14.
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