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DTC › GSC1 GSC1 / 1161

Electrical failure in the low side aux heater relay supply

â–¶ How to fix

Check cables and connectors Replace relay Engine restart may be required to reset fault code.

What you'll see

Valve 1 cannot be opened, DTC1012 (Electrical failure in valve 1 solenoid) may also be triggered.

System reaction

Amber engine warning lamp

Diagnostic depth

Detection

The GSC is detecting an electrical failure in the low side aux heater relay

Possible cause

Component: RXXX(gas aux heater low side relay), Failure type: Component internal failure, Priority: 1 Component: RXXX(gas aux heater low side relay), Failure type: Open load, Priority: 2 Component: RXXX(gas aux heater low side relay), Failure type: Short circuit ground, Priority: 2 Component: RXXX(gas aux heater low side relay), Failure type: Short circuit battery, Priority: 3

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