Mazda CX-7 2007 Workshop Manual page 1255

08-03 SYMPTOM TROUBLESHOOTING
TROUBLESHOOTING INDEX. . . . . . . . . 08-03–1
NO.1 AIR BAG SYSTEM WARNING
LIGHT DOES NOT ILLUMINATE . . . . . 08-03–1
Diagnostic Procedure. . . . . . . . . . . . . . 08-03–1
End of Toc
TROUBLESHOOTING INDEX WM: AIR BAG SYSTEM
• Use the chart below verify the symptoms of the trouble in order to diagnose the appropriate area.
No. Troubleshooting item
1 Air bag system warning light does not
illuminate.
2 Air bag system warning light is
illuminated constantly.
End Of Sie
NO.1 AIR BAG SYSTEM WARNING LIGHT DOES NOT ILLUMINATE
1 Air bag system warning light does not illuminate.
DETECTION Malfunction in air bag system warning light circuit (short to ground)
CONDITION
• SAS control module malfunction
POSSIBLE
• Instrument cluster (circuit board) malfunction
CAUSE
• Short to ground circuit in wiring harness between instrument cluster and SAS control module
Diagnostic Procedure
STEP
1 INSPECT OTHER WARNING AND INDICATOR
LIGHTS CIRCUIT IN INSTRUMENT CLUSTER
• Turn the ignition switch to the ON position.
• Do other warning and indicator lights
illuminate?
2 INSPECT DTCS IN SAS CONTROL MODULE
• Inspect the DTC for the SAS control module
on-board diagnostic system.
• Have DTCs been recorded in memory?
SYMPTOM TROUBLESHOOTING
Malfunction in air bag system warning
light circuit (short to ground).
Malfunction in air bag system warning
light circuit (open circuit or short to
power supply).
INSPECTION
NO.2 AIR BAG SYSTEM WARNING
LIGHT ILLUMINATES
CONSTANTLY . . . . . . . . . . . . . . . . . . . . 08-03–3
Diagnostic Procedure . . . . . . . . . . . . . . 08-03–3
Description
(See 08-03-1 NO.1 AIR BAG SYSTEM
WARNING LIGHT DOES NOT
ILLUMINATE)
(See 08-03-3 NO.2 AIR BAG SYSTEM
WARNING LIGHT ILLUMINATES
CONSTANTLY)
Yes Turn the ignition switch to the LOCK position, then go to the
next step.
No Inspect the instrument cluster power supply system and
ground system, then go to Step 4.
Yes Perform the applicable DTC inspection, then go to Step 5.
(See 08-02-4 DTC TABLE.)
No Go to the next step.
id080300802000
Page
id080300800200
ACTION
08-03–1
08-03