Mazda CX-7 2007 Workshop Manual page 209

Diagnostic procedure
STEP
1 VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Check for related Service Bulletins and/or on-
line repair information availability.
• Is any related repair information available?
2 INSPECT CRUISE CONTROL SWITCH
CONNECTOR FOR POOR CONNECTION
• Turn the ignition switch off.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
3 INSPECT CRUISE CONTROL SWITCH SIGNAL
CIRCUIT FOR SHORT TO GROUND
• Disconnect the cruise control switch and PCM
connectors.
• Inspect for continuity between cruise control
switch terminal 2 (wiring harness-side) and
body ground.
• Is there continuity?
4 INSPECT CRUISE CONTROL SWITCH SIGNAL
CIRCUIT FOR SHORT TO POWER
• Turn the ignition switch to the ON position
(Engine off).
• Inspect the voltage between cruise control
switch terminal 2 (wiring harness-side) and
body ground.
• Is the voltage below 1.0 V?
5 INSPECT CRUISE CONTROL SWITCH
OPERATION
• Inspect the cruise control switch.
(See01-20-1 CRUISE CONTROL SWITCH
INSPECTION[L3 WITH TC].)
• Is the cruise control switch normal?
6 VERIFY TROUBLESHOOTING OF P0564
COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the PCM memory using
the M-MDS.
• Drive the vehicle using cruise control for 2 min.
or more.
• Is the same DTC present?
7 VERIFY AFTER REPAIR PROCEDURE
• Perform the "AFTER REPAIR PROCEDURE".
(See01-14-4 AFTER REPAIR
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?
End Of Sie
ON-BOARD DIAGNOSTIC [L3 WITH TC]
INSPECTION
Yes Perform the repair or diagnosis according to the available
repair information.
• If the vehicle is not repaired, go to the next step.
No Go to the next step.
Yes Repair or the replace the terminal, then go to Step 6.
No Go to the next step.
Yes Repair or replace for a short to ground, then go to Step 6.
No Go to the next step.
Yes Go to the next step.
No Repair or replace for a short to the power supply, then go to
Step 6.
Yes Go to the next step.
No Replace the cruise control switch, then go to the next step.
Yes Replace the PCM, then go to the next step.
(See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH
TC].)
No Go to the next step.
Yes Go to the applicable DTC inspection.
(See01-02-13 DTC TABLE[L3 WITH TC].)
No Troubleshooting completed.
ACTION
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01-02