DTC Lookup

Possible Causes

• 1. Heated steering wheel control unit malfunction (Refer to [HEATED STEERING WHEEL CONTROL UNIT REMOVAL/INSTALLATION] in workshop manual.) 2. Steering wheel malfunction (heated steering wheel unit malfunction) (Refer to [STEERING WHEEL AND COLUMN REMOVAL/INSTALLATION] in workshop manual.) 3. Dash-el

Dash_ESU

B13BD:1C [DASH_ESU]

SM3340248

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id990260119200

System malfunction location	Heated steering wheel control unit power supply circuit malfunction
Detection condition	• The dash-electrical supply unit detects a malfunction in the steering warmer control unit power supply circuit.
Fail-safe	• Stops the steering warmer output.
Possible cause	1. DTCs are stored in the following modules. ― PCM (See DTC TABLE [PCM (SKYACTIV-G)].) (See DTC TABLE [PCM (SKYACTIV-X)].) (See DTC TABLE [PCM (SKYACTIV-G 2.5T)].) ― DC-DC converter(See DTC TABLE [DCDC].) ― Drive motor control module/Integrated starter generator (ISG) (See DTC TABLE [ISG].) 2. IG1 relay No.2 malfunction(Refer to [RELAY INSPECTION] in workshop manual.) 3. Malfunction in wiring harness (including connector/terminal) between IG1 relay No.2 and heated steering wheel control unit (See CIRCUIT INSPECTION.) (See CONNECTOR INSPECTION.) 4. Malfunction in wiring harness (including connector/terminal) between heated steering wheel control unit and body ground (See CIRCUIT INSPECTION.) (See CONNECTOR INSPECTION.) 5. Clock spring malfunction (Refer to [CLOCK SPRING INSPECTION] in workshop manual.) 6. Heated steering wheel control unit malfunction (Refer to [HEATED STEERING WHEEL CONTROL UNIT REMOVAL/INSTALLATION] in workshop manual.) 7. Dash-electrical supply unit malfunction (Refer to [DASH-ELECTRICAL SUPPLY UNIT REMOVAL/INSTALLATION] in workshop manual.)
Repeatability verification procedure	1. Clear the DTC recorded in the memory. (See CLEARING DTC.)
1	Battery/lead-acid battery
2	IG1 relay No.2
3	Clock spring
4	Heated steering wheel control unit