Dtc C1186, C1266 - Mazda 6 2002 Workshop Manual

ON-BOARD DIAGNOSTIC (DYNAMIC STABILITY CONTROL)
STEP
8 INSPECT DSC HU/CM OPERATION
• Perform DSC HU/CM system inspection.
• See P–35 DSC SYSTEM INSPECTION
• Is it okay?
9 VERIFY TROUBLESHOOTING COMPLETED
• Make sure to reconnect all disconnected
connectors.
• Clear DTC from memory.
(See P–46 Clearing DTCs
• Start engine and drive vehicle at 10 km/h
{6.2 mph} or above.
• Gradually slow down vehicle and stop.
• Is same DTC present?
10 VERIFY AFTER REPAIR PROCEDURE
• Is there any other DTC present?

DTC C1186, C1266

End Of Sie
Caution
• • • • When attaching the tester lead to the DSC HU/CM connector the SST (49 G066 004) must be used.
DTC C1186, C1266
• C1186:
— Fail-safe relay in DSC HU/CM stuck OFF when ignition switch is turned ON, fail-safe relay ON is
DETECTION
CONDITION • C1266:
— Fail-safe relay in DSC HU/CM stuck ON when ignition switch is turned ON, fail-safe relay OFF is
• Malfunction of fuse (ABS 60 A)
POSSIBLE • Open circuit in harness between DSC HU/CM terminal C and battery positive terminal
CAUSE • Open or short of fail-safe relay in DSC HU/CM
• Stuck fail-safe relay in DSC HU/CM
P–86
INSPECTION
Procedures)
Fail-safe relay
commanded.
commanded.
Yes Go to net step.
No Replace DSC HU/CM, then go to net step.
Yes Replace DSC HU/CM, then go to net step.
No Go to net step.
Yes Go to applicable DTC inspection.
No Troubleshooting completed.
ACTION
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