DTC U1901 [DSC/RSC]
DTC U1901 [DSC/RSC] DETECTION CONDITION AND POSSIBLE CAUSE
2
TROUBLESHOOTING
COMPLETED
z
Clear the DTC from the
memory.
(See
ON-BOARD
DIAGNOSTIC
[DSC/RSC]
.)
z
Is the same DTC present?
Yes
Repeat the inspection from Step 1.
If the malfunction occurs again, replace the DSC/RSC
HU/CM, then go to the next step.
(See
DSC/RSC HU/CM
REMOVAL/INSTALLATION
.)
No
Go to the next step.
3
VERIFY AFTER REPAIR
PROCEDURE
z
Are any other DTCs present?
Yes Go to the applicable DTC inspection.
(See
ON-BOARD DIAGNOSTIC [DSC/RSC]
.)
No
DTC troubleshooting completed.
DTC U1901
Combined sensor system (CAN2 line malfunction)
DETECTION
CONDITION
z
The signal from the combined sensor is not within specification.
POSSIBLE CAUSE
z
Open or short circuit in the CAN2_L wiring harness between combined sensor
terminal C and DSC/RSC HU/CM terminal M
z
Open or short circuit in the CAN2_H wiring harness between combined sensor
terminal D and DSC/RSC HU/CM terminal P
z
Combined sensor malfunction
z
DSC/RSC HU/CM malfunction
z
Poor connection at connectors (female terminal)
2008 Mazda CX-9 Grand Touring
2008 BRAKES On-Board Diagnostic (DSC/RSC) - Mazda CX-9
Microsoft
Sunday, November 15, 2009 9:50:13 AM
Page 40
© 2005 Mitchell Repair Information Company, LLC.
