Code Definition

C1944 — Gauge Driver Circuit Fault

System: Chassis  |  Type: Manufacturer-Specific  |  Make: Generic

About C1944

C1944 is a manufacturer-specific chassis diagnostic trouble code. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

When C1944 is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

Scanning & clearing: Chassis (C) codes are stored in the ABS, traction control, or stability-control modules. An enhanced or OEM-level scan tool is usually required to read and clear them.

C1944 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The instrument cluster uses gauge driver circuits, typically stepper motor or air core driver outputs controlled by a driver chip, to position the needles of gauges such as the speedometer, tachometer, fuel level, and coolant temperature. DTC C1944 sets when the cluster detects an electrical fault in a gauge driver circuit, such as an open or short in the driver output, a failed gauge motor coil, or a fault within the driver chip itself. When this code is set one or more gauges may read incorrectly, stick, sweep erratically, or fail to move, and the information those gauges provide may be unav...

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