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Pinpoint Test I: B135C:11, B135C:15: Notes

Refer to ADJUSTABLE STEERING COLUMN for schematic and connector information.

Normal Operation and Fault Conditions 

REFER to: Steering Wheel and Column Electrical Components - System Operation and Component Description .

HSWM DTC Fault Trigger Conditions 

DTC Description Fault Trigger Conditions
B135C:11 Heater Element: Circuit Short to Ground Sets when the heated steering wheel is commanded on and the HSWM senses current greater than 10 amps from the steering wheel heating element output circuit, indicating a short to ground or when the steering wheel heating element output Field Effect Transistor (FET) in the HSWM has a thermal failure. When this fault sets, the steering wheel heating element output is disabled until the ignition is cycled.
B135C:15 Heater Element: Circuit Short to Battery or Open Sets when the heated steering wheel is commanded on and the module senses current less than 1 amp from the steering wheel heating element output circuit. This indicates a short to voltage, an open circuit or an open in the heating element. When this fault sets, the steering wheel heating element output is disabled until the ignition is cycled.

Possible Causes 

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