DTC B1026-49; Steering Lock Malfunction: Notes

WARNING: This page is about a different car, the 2017 Mazda 3. However, it is still accessible from the selected car via links, so may be relevant.

WARNING:

If this DTC is detected, the system will enter the fail-safe function to ensure safety. If the ignition is switched OFF (LOCK) after a specified time has elapsed or the vehicle has been driven for a specified period of time or more while in the fail-safe mode, the ignition will remain switched off and the engine cannot be started. Therefore, perform the malfunction diagnosis while the engine can be started. In addition, after having performed the malfunction diagnosis, verify that this DTC is not detected with the steering wheel locked. If the DTC is not detected, the system returns to normal from the fail-safe function.

NOTE:

When changing to the fail-safe mode, the push button start indicator light (amber) flashes.

Fig 1: Locating Push Start Button And Indicator Light

Courtesy of MAZDA MOTORS CORP.

In addition to the normal engine starting operation for cranking the engine in fail-safe mode, it is necessary to long-press the push button start until the engine starts.

DETECTION CONDITION & POSSIBLE CAUSE

Description	Steering lock malfunction
Detection condition	Start stop unit detects a serious malfunction in the steering lock of the internal start stop unit.
Fail-safe	The system will enter the fail-safe function to ensure safety. If the ignition is switched OFF (LOCK) after a specified time has elapsed or the vehicle has been driven for a specified period of time or more while in the fail-safe mode, the ignition will remain switched off and the engine cannot be started.
Possible cause	Start stop unit malfunction
System wiring diagram	Not applicable