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ABS Outlet Valve Coil LF Circuit Open

Jump to the fix

Severity

High

Can I keep driving?

Avoid extended driving; visit a service soon.

First step

Check key-off current draw and feel the hydraulic unit after the car has stood; a warm unit plus a drain confirms a circuit that never switches off

  • CChassis
  • 1Manufacturer-specific
  • 1Chassis / ABS
  • 95Sequence number

What does it mean?

C1195 is a Chassis (ABS, traction control, steering) fault code. It indicates: ABS Hydraulic Valve Power Relay Circuit Short to Battery . This is a standardised OBD-II code. The technical definition is the same regardless of the make or model of vehicle, although specific causes and symptoms can vary between vehicles.

Symptoms

  • ABS and stability control warning lamps on, in some cases with a brake system message
  • ABS is disabled and there is no pedal pulsing or wheel speed regulation in an emergency stop
  • Buzzing or humming from the hydraulic unit after the ignition has been switched off
  • Battery going flat when the car is left standing, with a measurable key-off current draw
  • The hydraulic unit feels warm long after the engine has been switched off, because the coils remain energised

Likely causes

  • Relay contacts welded together, keeping the valve coils permanently supplied
  • Chafe between the relay circuit and an always live wire inside the same harness
  • Water bridging live and control terminals inside the relay or fuse box
  • Incorrect relay fitted, or a relay moved into the wrong slot during earlier fault finding
  • Extra electrical equipment connected into the ABS supply, feeding voltage back into the circuit
  • Melted insulation where the loom passes a hot component or a high current junction
  • Failed output or monitoring stage inside the ABS control module

How to fix it

  1. Check key-off current draw and feel the hydraulic unit after the car has stood; a warm unit plus a drain confirms a circuit that never switches off
  2. Read all chassis codes; a set of short to battery codes together points to one shared supply rather than several failed coils
  3. Remove the relay, confirm the correct part in the correct slot, and bench test the contacts for welding
  4. Inspect the fuse and relay box for water, corrosion and tracking between adjacent live terminals
  5. With the relay out and the ABS module unplugged, check the control wire for voltage; any reading means voltage is entering from elsewhere
  6. Trace the harness for chafe against permanently live cables and inspect every aftermarket splice
  7. Repair or reroute the wiring and replace a welded relay, leaving ABS module repair as the last option once the harness is clean

Codes From the Same System

All Fault Codes

Related Similar Codes

This information follows the generic OBD-II definition and does not replace a vehicle-specific diagnosis. The severity rating is rule-based; an authorised diagnostic reading is required for a definitive answer.