Mazda CX-7 2007 Workshop Manual page 1375

Diagnostic procedure
STEP
1 INSPECT HOOD LATCH SWITCH
CONNECTOR
• Turn the ignition switch off.
• Disconnect the hood latch switch connector.
• Inspect the hood latch switch 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 HOOD LATCH SWITCH SIGNAL
CIRCUIT FOR OPEN CIRCUIT
• Inspect for continuity between BCM terminal
1A (wiring harness-side) and hood latch
switch terminal A (wiring harness-side).
• Is there continuity?
4 INSPECT HOOD LATCH SWITCH GND
CIRCUIT FOR OPEN CIRCUIT
• Inspect for continuity between hood latch
switch terminal B (wiring harness-side) and
body GND.
• Is there continuity?
5 INSPECT HOOD LATCH SWITCH
• Inspect the hood latch switch.
(See 09-14-6 FRONT DOOR LATCH AND
LOCK ACTUATOR INSPECTION.)
• Is there any malfunction?
6 VERIFY TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the BCM memory using
the M-MDS.
• Perform the self-test.
(See 09-02F-26 BCM SELF-TEST[BCM].)
• Is the same DTC present?
End Of Sie
ON-BOARD DIAGNOSTIC [BCM]
INSPECTION
Yes Repair or replace the terminal, then go to Step 6.
No Go to the next step.
Yes Repair or replace the terminal, then go to Step 6.
No Go to the next step.
Yes Go to the next step.
No Repair or replace the wiring harness for a possible open
circuit, then go to Step 6.
Yes Go to the next step.
No Repair or replace the wiring harness for a possible open
circuit, then go to Step 6.
Yes Replace the hood latch switch, then go to the next step.
(See 09-14-5 FRONT DOOR LATCH AND LOCK
ACTUATOR REMOVAL/INSTALLATION.)
No Go to the next step.
Yes Replace the BCM.
(See 09-40-1 BODY CONTROL MODULE (BCM)
REMOVAL/INSTALLATION.)
No DTC troubleshooting completed.
ACTION
09-02F–13
09-02F