Mazda CX-7 2007 Workshop Manual page 1368

DTC B1322[BCM]
DTC B1322 Drive door ajar circuit short to ground
DETECTION Short to GND in wiring harness between BCM and front door switch (driver-side)
CONDITION
• Short to GND in wiring harness between BCM terminal 5Y and front door switch (driver-side) terminal
POSSIBLE G
• Front door switch malfunction
CAUSE
• BCM malfunction
FRONT DOOR SWITCH WIRING
HARNESS-SIDE CONNECTOR
Diagnostic procedure
STEP
1 INSPECT FRONT DOOR SWITCH (DRIVER-
SIDE) CONNECTOR
• Turn the ignition switch off.
• Disconnect the front door switch (driver-side)
connector.
• Inspect the front door switch (driver-side)
connector terminals for poor connection
(such as damaged/pulled-out pins, and
corrosion).
• Is there any malfunction?
2 INSPECT BCM CONNECTOR
• Disconnect the BCM connector.
• Inspect the BCM connector terminals for
poor connection (such as damaged/pulled-
out pins, and corrosion).
• Is there any malfunction?
3 INSPECT FRONT DOOR SWITCH (DRIVER-
SIDE) SIGNAL CIRCUIT FOR SHORT TO GND
• Inspect for continuity between BCM terminal
5Y (wiring harness-side) and body GND.
• Is there continuity?
09-02F–6
ON-BOARD DIAGNOSTIC [BCM]
A
FRONT DOOR SWITCH
A
INSPECTION
BCM
5Y
BCM WIRING HARNESS-SIDE
CONNECTOR
5AB 5Y 5V 5S 5P 5M
5AC 5Z 5W 5T 5Q 5N
5AD 5AA 5X 5U 5R 5O
Yes Repair or replace the terminal, then go to Step 5.
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 5.
No Go to the next step.
Yes Repair or replace the wiring harness for a possible open
circuit, then go to Step 5.
No Go to the next step.
id0902f5838000
5J 5G 5D 5A
5K 5H 5E 5B
5L 5I 5F 5C
ACTION