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Home >> Mazda >> 2013 >> CX-5 Touring, AWD >> Repair and Diagnosis >> Brakes >> Traction Control >> On-Board Diagnostic [Dynamic Stability Control System] >> DTC U0151-00: SAS Control Module System (Can2 Line Malfunction) >> Diagnostic Procedure

Diagnostic Procedure

DETECTION CONDITION AND POSSIBLE CAUSE

STEP INSPECTION ACTION
1 INSPECT SAS CONTROL MODULE MALFUNCTION 
Yes Go to applicable DTC inspection.
(See DTC TABLE [STANDARD DEPLOYMENT CONTROL SYSTEM] ).
(See DTC TABLE [TWO-STEP DEPLOYMENT CONTROL SYSTEM] ).
No Go to the next step.
2 INSPECT SAS CONTROL MODULE SIGNAL (CAN2 LINE) FOR OPEN CIRCUIT 
  • Disconnect the DSC HU/CM connector.
  • Disconnect the SAS control module connectors.
  • Inspect for continuity between the following DSC HU/CM connector terminals (vehicle harness-side) and SAS control module connector terminals (vehicle harness-side):
    • DSC HU/CM terminal S-SAS control module terminal 3H
    • DSC HU/CM terminal P-SAS control module terminal 31
  • Is there continuity?
Yes Go to the next step.
No Repair or replace the wiring harness, then go to Step 4.
3 INSPECT SAS CONTROL MODULE SIGNAL (CAN2 LINE) FOR SHORT CIRCUIT 
  • Inspect for continuity between the following DSC HU/CM connector terminals (vehicle harness-side) and body ground:
    • DSC HU/CM terminal S-body ground
    • DSC HU/CM terminal P-body ground
  • Is there continuity?
Yes Repair or replace the wiring harness, then go to the next step.
No Go to the next step.
4 VERIFY THAT THE SAME DTC IS NOT PRESENT 
Yes Repeat the inspection from Step 1.
If the malfunction recurs, replace the DSC HU/CM, then go to the next step.
(See DSC HU/CM REMOVAL/INSTALLATION ).
No Go to the next step.
5 VERIFY THAT NO OTHER DTCS ARE PRESENT 
  • Are any other DTCs output?
Yes Go to the applicable DTC inspection.
(See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)] ).
No DTC troubleshooting completed.