Mazda CX-7 2007 Workshop Manual page 1365

DTC
Description
No.
Steering phase C circuit short to
C144A
ground
Steering wheel angle sensor offset
C1937
failure
U0073 CAN system communication error BCM or twisted pair malfunction
End Of Sie
DTC B1317[BCM]
DTC B1317 Battery voltage high
DETECTION Input voltage from the battery is excessively high
CONDITION
• Battery malfunction
POSSIBLE
• Generator malfunction
CAUSE
• BCM malfunction
Diagnostic procedure
STEP
1 INSPECT DTC FROM PCM
• Connect the M-MDS to the DLC-2.
• Are any DTCs from the PCM displayed?
2 VERIFY TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear the DTC from the BCM memory using
the M-MDS.
• Turn the ignition switch to LOCK position
then ON position.
• Is the same DTC present?
End Of Sie
ON-BOARD DIAGNOSTIC [BCM]
Detection condition
Short to GND in wiring harness between BCM
and steering angle sensor
BCM lost steering angle initialization position
INSPECTION
Yes Perform DTC inspection.
(See 01-02-13 DTC TABLE[L3 WITH TC].)
Go to the next step.
No Go to the next step.
Yes Replace the BCM.
(See 09-40-1 BODY CONTROL MODULE (BCM)
REMOVAL/INSTALLATION.)
No DTC troubleshooting completed.
Page
(See 09-02F-24 DTC C1295,
C1307, C1441, C1442, C1443,
C1444, C144A, C144C[BCM].)
(See 09-02F-26 DTC
C1937[BCM].)
(See 09-02D-14 DTC
U0073[MULTIPLEX
COMMUNICATION SYSTEM].)
id0902f5830900
ACTION
09-02F–3
09-02F