Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

SYS.OK|MANUAL.DB● LIVE

HOMESERVICE MANUALSMAZDA20132 TOURING, 1.5L ENG VIN Z, AUTOMATIC TRANSREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESON-BOARD DIAGNOSTIC [BODY CONTROL SYSTEM)DTC B1178:11: CAN SYSTEM COMMUNICATION ERROR (HS-CAN)DIAGNOSTIC PROCEDURE

2013 Mazda 2 Touring, 1.5L Eng VIN Z, Automatic Trans

Diagnostic Procedure

2013 Mazda 2 Touring, 1.5L Eng VIN Z, Automatic TransSECTION Diagnostic Procedure

DTC DIAGNOSTIC PROCEDURE

Step	Inspection		Action
1	PERFORM DTC INSPECTION Clear the DTC using the M-MDS. (See CLEARING DTC [BCM] ). Verify the BCM DTC using the M-MDS. (See DTC INSPECTION [BCM] ). Is the same DTC present?	Yes	Go to the next step.
1		No	Go to Step 7.
2	INSPECT LIFTGATE LATCH AND LOCK ACTUATOR CONNECTOR AND TERMINALS Switch the ignition to off. Disconnect the negative battery cable. Disconnect the liftgate latch and lock actuator connector. Inspect the connector and terminals (corrosion, damage, pin disconnection). Is there any malfunction?	Yes	Repair or replace the connector or terminals, then go to Step 6.
2		No	Go to the next step.
3	INSPECT LIFTGATE LATCH SWITCH Inspect the liftgate latch switch. (See LIFTGATE LATCH SWITCH INSPECTION ). Is there any malfunction?	Yes	Replace the liftgate latch and lock actuator, then go to Step 6. (See LIFTGATE LATCH AND LOCK ACTUATOR REMOVAL/INSTALLATION ).
3		No	Go to the next step.
4	INSPECT BCM CONNECTOR AND TERMINALS Disconnect the BCM connector. Inspect the connector and terminals (corrosion, damage, pin disconnection). Is there any malfunction?	Yes	Repair or replace the connector or terminals, then go to Step 6.
4		No	Go to the next step.
5	INSPECT LIFTGATE LATCH SWITCH CIRCUIT FOR SHORT TO GROUND Liftgate latch and lock actuator and BCM connectors are disconnected. Inspect for continuity between liftgate latch and lock actuator terminal C (wiring harness-side) and body ground. Is there continuity?	Yes	Repair or replace the wiring harness for a possible short to ground, then go to the next step.
5		No	Go to the next step.
6	VERIFY TROUBLESHOOTING COMPLETED Make sure to reconnect all disconnected connectors. Reconnect the negative battery cable. Clear the DTC using the M-MDS. (See CLEARING DTC [BCM] ). Verify the BCM DTC using the M-MDS. (See DTC INSPECTION [BCM] ). Is the same DTC present?	Yes	Repeat the inspection from Step 1. If the malfunction recurs, replace the BCM. (See BODY CONTROL MODULE (BCM) REMOVAL/INSTALLATION ). Go to the next step.
6		No	Go to the next step.
7	VERIFY THAT NO OTHER DTCs ARE PRESENT Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [BCM] ).
7		No	DTC troubleshooting completed.

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready Tools Free Quote Check Quote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.