Brakes (Electrical Data): Description and operation
- Make
- Land Rover
- Model
- Freelander System Description and Operation (UK)
- Section
- Description and operation › Electrical Data
BrakesElectrical Data
| Fault | Status of Warning Lamps | Default Strategy | |||
|---|---|---|---|---|---|
| ABS | ETC | HDC Fault | HDC Information | ||
| Failure of output valve | On | On | On | Off* | ABS: Enabled on unaffected hydraulic circuit (if applicable), disabled on affected hydraulic circuit(s). ETC: Disabled. HDC: Immediately disabled if not in active braking mode, faded out then disabled if in braking mode. |
| Failure of more than one output valve | On | On | On | Off* | ABS: Enabled on unaffected hydraulic circuit (if applicable), disabled on affected hydraulic circuit(s). ETC: Disabled. HDC: Immediately disabled if not in active braking mode, faded out then disabled if in braking mode. |
| Battery short in more than two input or output valve circuits | On | On | On | Off | ABS: Disabled. ETC: Disabled. HDC: Disabled. |
| Return pump fault | On | On | On | Off | ABS: Disabled. ETC: Disabled. HDC: Disabled. |
| HDC relay fault | Off | Off | On | Off* | ABS: Enabled. ETC: Enabled. HDC: Enabled. |
| Supply voltage out of limits | On | On | On | Off* | ABS: Enabled. ETC: Disabled. HDC: Immediately disabled if not in active braking mode, faded out then disabled if in active braking mode. |
| * = Flashes if HDC faded out; † = Flashes if HDC in active braking mode | |||||
Electrical Data
Component resistance and voltage values are detailed below:
| Component | Resistance, Ohms |
|---|---|
| HDC relay coil | 73 to 89 |
| ABS sensor (up to 2002 MY) | 950 to 1100 |
| ABS sensor (from 2002 MY) | 1 maximum |
| Inlet solenoid valve | 5.9 to 7.3 |
| Outlet solenoid valve | 3.0 to 3.6 |
| Component | Signal |
|---|---|
| First gear switch | Earth when first gear selected. Open circuit when first gear not selected. |
| HDC switch | Battery voltage when HDC selected. Open circuit when HDC not selected. |
| Reverse gear switch | Battery voltage when reverse gear selected. Open circuit when reverse gear not selected. |
Parts & tools for this job For Land Rover Freelander
- TOOLDigital multimeterSearch: automotive digital multimeter
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- TOOLWire crimper and connector kitSearch: wire crimper connector kit
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