Diagnostic procedure

WARNING: This page is about a different car, the 2014 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.

DTC U0151:00 (DYNAMIC STABILITY CONTROL) DIAGNOSTIC PROCEDURE

STEP	INSPECTION		ACTION
1	PERFORM SAS CONTROL MODULE DTC INSPECTION Switch the ignition off. Using the M-MDS, perform the DTC inspection for the SAS control module. (See DTC INSPECTION [STANDARD DEPLOYMENT CONTROL SYSTEM] .) (See DTC INSPECTION [TWO-STEP DEPLOYMENT CONTROL SYSTEM] .) Are any DTCs detected?	Yes	Go to applicable DTC inspection. (See DTC TABLE [STANDARD DEPLOYMENT CONTROL SYSTEM] .) (See DTC TABLE [TWO-STEP DEPLOYMENT CONTROL SYSTEM] .)
1		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 G-SAS control module terminal 3H DSC HU/CM terminal F-SAS control module terminal 3I Is there continuity?	Yes	Go to the next step.
2		No	Refer to the wiring diagram and verify whether or not there is a common connector between the following DSC HU/CM connector terminals (vehicle harness-side) and SAS control module connector terminals (vehicle harness-side): DSC HU/CM terminal G-SAS control module terminal 3H DSC HU/CM terminal F-SAS control module terminal 3I If there is a common connector: Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit. Repair or replace the malfunctioning part. If there is no common connector: Repair or replace the wiring harness which has an open circuit. 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 G-body ground DSC HU/CM terminal F-body ground Is there continuity?	Yes	Refer to the wiring diagram and verify whether or not there is a common connector between the following DSC HU/CM connector terminals (vehicle harness-side) and SAS control module connector terminals (vehicle harness-side): DSC HU/CM terminal G-SAS control module terminal 3H DSC HU/CM terminal F-SAS control module terminal 3I If there is a common connector: Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for a short to ground. Repair or replace the malfunctioning part. If there is no common connector: Repair or replace the wiring harness which has a short to ground. Go to next step.
3		No	Go to the next step.
4	VERIFY THAT SAME DTC IS NOT PRESENT Reconnect all disconnected connectors. Clear the DTCs from the memory. (See ON-BOARD DIAGNOSIS [DYNAMIC STABILITY CONTROL (DSC)] .) Start the engine and drive the vehicle at 10 km/h {6.2 mph} or more . Are the same DTCs 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 .)
4		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)] .)
5		No	DTC troubleshooting completed.