DTC C1186, C1266 [Dynamic Stability Control]: Notes

DTC C1186, C1266 POSSIBLE CAUSE

DTC C1186, C1266	Valve relay system
DETECTION CONDITION	C1186 DSC HU/CM internal valve relay remains OFF when valve relay ON is commanded. C1266 DSC HU/CM internal valve relay remains ON (stuck) when valve relay OFF is commanded.
POSSIBLE CAUSE	ABS 30 A fuse malfunction Open circuit or short to ground in the wiring harness between the battery and the DSC HU/CM terminal C Open or short circuit in the DSC HU/CM internal valve relay, or stuck valve relay Poor connection at connectors (female terminal)
Courtesy of MAZDA MOTORS CORP.