Mazda Mazda6 Workshop Manual Supplement page 298

STEP
4 INSPECT POOR CONNECTION OF BRAKE
SWITCH 1 CONNECTOR
• Turn engine switch to OFF.
• Inspect for poor connection (damaged, pulled-
out terminals, corrosion, etc.).
• Is there any malfunction?
5 CLASSIFY MALFUNCTION OF BRAKE SWITCH
1 OR CIRCUIT
• Connect a jumper wire between brake switch
terminals B and D.
• Turn engine switch to ON (Engine OFF).
• Access BOO PID using WDS or equivalent.
• Is BOO PID ON?
6 INSPECT BRAKE SWITCH 1
• Inspect brake switch 1.
• Is there any malfunction?
7 INSPECT BRAKE SWITCH 1 POWER CIRCUIT
FOR OPEN
• Turn engine switch to OFF.
• Inspect continuity between main fuse and
brake switch terminal B.
• Is there continuity?
8 INSPECT POOR CONNECTION OF PCM
CONNECTOR
• Turn engine switch to OFF.
• Inspect for poor connection (damaged, pulled-
out terminals, corrosion, etc.).
• Is there any malfunction?
9 INSPECT BRAKE SWITCH 1 SIGNAL CIRCUIT
FOR OPEN
• Turn engine switch to OFF.
• Inspect continuity between brake switch
terminal D and PCM terminal 7.
• Is there continuity?
10 INSPECT POOR CONNECTION OF BRAKE
SWITCH 1 CONNECTOR
• Turn engine switch to OFF.
• Inspect for poor connection (damaged, pulled-
out terminals, corrosion, etc.).
• Is there any malfunction?
11 CLASSIFY MALFUNCTION OF BRAKE SWITCH
1 OR CIRCUIT
• Turn engine switch to ON (Engine OFF).
• Access BOO PID using WDS or equivalent.
• Verify that BOO PID changes from ON to OFF
when brake switch connector disconnected.
• Does BOO PID change from ON to OFF?
12 INSPECT BRAKE SWITCH 1
• Inspect brake switch 1.
• Is there any malfunction?
13 INSPECT BRAKE SWITCH 1 SIGNAL CIRCUIT
FOR SHORT TO POWER
• Turn engine switch to ON (Engine OFF).
• Inspect voltage between brake switch terminal
D and body GND.
• Is voltage below 1.0 V?
F2–146
ON-BOARD DIAGNOSTIC
INSPECTION
Yes Repair or replace suspected terminal, go to Step 21.
No Go to next step.
Yes Go to next step.
No Go to Step 7.
Yes Replace brake switch, go to Step 21.
No Go to Step 21.
Yes Go to next step.
No Repair or replace harness for open, go to Step 21.
Yes Repair or replace suspected terminal, go to Step 21.
No Go to next step.
Yes Go to Step 21.
No Repair or replace harness for open, go to Step 21.
Yes Repair or replace suspected terminal, go to Step 21.
No Go to next step.
Yes Go to next step.
No Go to Step 13.
Yes Replace brake switch, go to Step 21.
No Go to Step 21.
Yes Go to next step.
No Repair or replace harness for short to power, go to Step 21.
ACTION