Mazda CX-7 2007 Workshop Manual page 87

Diagnostic procedure
STEP
1 VERIFY FREEZE FRAME DATA HAS BEEN
RECORDED
• Has the FREEZE FRAME DATA been
recorded?
2 VERIFY RELATED REPAIR INFORMATION
AVAILABILITY
• Check for related Service Bulletins and/or on-
line repair information availability.
• Is any related repair information available?
3 INSPECT MAP/BOOST AIR TEMPERATURE
SENSOR CONNECTOR FOR POOR
CONNECTION
• Turn the ignition switch off.
• Disconnect the MAP/boost air temperature
sensor connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
4 INSPECT BOOST AIR TEMPERATURE SENSOR
SIGNAL CIRCUIT FOR SHORT TO GROUND
• Turn the ignition switch off.
• Inspect for continuity between the MAP/boost
air temperature sensor terminal B (wiring
harness-side) and body ground.
• Is there continuity?
5 INSPECT BOOST AIR TEMPERATURE SENSOR
• Inspect the boost air temperature sensor.
(See01-40-31 BOOST AIR TEMPERATURE
SENSOR INSPECTION[L3 WITH TC].)
• Is there malfunction?
6 INSPECT PCM CONNECTOR FOR POOR
CONNECTION
• Turn the ignition switch off.
• Disconnect the PCM connector.
• Inspect for poor connection (such as damaged/
pulled-out pins, corrosion).
• Is there any malfunction?
7 VERIFY TROUBLESHOOTING OF DTC P0097
COMPLETED
• Make sure to connect all disconnected
connectors.
• Clear the DTC from the PCM memory using
the M-MDS.
• Start the engine.
• Is the same DTC present?
8 VERIFY AFTER REPAIR PROCEDURE
• Perform the "AFTER REPAIR PROCEDURE".
(See01-02-10 AFTER REPAIR
PROCEDURE[L3 WITH TC].)
• Are any DTCs present?
End Of Sie
ON-BOARD DIAGNOSTIC [L3 WITH TC]
INSPECTION
Yes Go to the next step.
No Record FREEZE FRAME DATA on the repair order, then go
to the next step.
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 replace the terminal, then go to Step 7.
No Go to the next step.
Yes Repair or replace the wiring harness for a short to ground,
then go to Step 7.
No Go to the next step.
Yes Replace the MAP/boost air temperature sensor, then go to
Step 7.
(See01-40-29 MANIFOLD ABSOLUTE PRESSURE (MAP)
SENSOR/BOOST AIR TEMPERATURE SENSOR
REMOVAL/INSTALLATION[L3 WITH TC].)
No Go to the next step.
Yes Repair or replace the terminal, then go to the next step.
No Go to the next step.
Yes Replace 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 DTC troubleshooting completed.
ACTION
01-02–45
01-02