Mazda CX-7 2007 Workshop Manual page 823

*2
NO.5 DSC OPERATES FREQUENTLY/DSC DOES NOT WORK CORRECTLY
GOES ON AND OFF WHILE DSC IS OPERATING
DSC (*2) operates frequently. /DSC does not work correctly.
5
(*2): DSC indicator light goes on and off while DSC is operating.
[TROUBLESHOOTING HINTS]
• DSC HU/CM detected malfunction (input and output device malfunction)
• Poor installation of yaw rate sensor, lateral-G sensor and/or steering angle sensor
(If any of the above sensors are poorly installed, DSC may operate intermittently)
• When replacing the DSC HU/CM, combined sensor or steering angle sensor, initialization is not performed.
(If initialization is not performed correctly, DSC may not work correctly)
Diagnostic procedure
STEP
1 INSPECT DSC HU/CM FOR DTCs
• Inspect the DTC for the DSC ON-BOARD
DIAGNOSTIC SYSTEM.
• Have DTCs been recorded in memory?
2 VERIFY THAT EACH SENSOR IS INSTALLED
• Are the combined sensor and steering angle
sensor securely installed?
*3 VERIFY THAT EACH SENSOR IS INITIALIZED
• Was initialization performed after
replacement of the DSC HU/CM, combined
sensor or steering angle sensor?
4 VERIFY THAT TIRE CONDITION
• Verify tire condition for following:
— Air pressure
— Wear
— Grip level (different by four wheels)
• Are tires condition okay?
End Of Sie
SYMPTOM TROUBLESHOOTING
INSPECTION
Yes Perform the applicable DTC inspection.
(See 04-02-3 ON-BOARD DIAGNOSIS.)
No Go to the next step.
Yes Go to the next step.
No Install sensor securely.
Yes Go to the next step.
No Perform initialization procedure.
(See 04-15-17 COMBINED SENSOR INITIALIZATION
PROCEDURE.)
(See 09-40-8 STEERING ANGLE SENSOR
INITIALIZATION PROCEDURE.)
Yes Find malfunctioning part according to "INTERMITTENT
CONCERN TROUBLESHOOTING".
No Adjust, repair or replace tire.
*2
: DSC INDICATOR LIGHT
id040300803500
ACTION
04-03–11