DAF XF95 Wiring Diagram. Electrical System

This page contains a DAF XF95 Electrical diagram, showing the main components and their interconnections. This diagram is designed to facilitate diagnostics and repairs of the electrical system.

Main circuit components:

• Battery
• Alternator
• Starter
• Digital Control Unit
• Fuses and relays
• Connecting wires and contacts

• DAF Home Page>>
• DAF XF95 Factory Workshop Manual>>

1. Wiring problems

Oxidation of contacts in connectors and harnesses (especially in the engine compartment and near the batteries).

Abrasion of wire insulation due to contact with the frame or cabin → short circuits.

Weak grounds → voltage surges, electronic malfunctions.

Damage to wiring harnesses under the cabin and near the taillights due to moisture and dirt.

2. Sensor malfunctions

Oil pressure sensor → often gives false alarms due to poor contact.

Coolant temperature sensor → causes incorrect readings on the instrument panel and fan operation.

ABS sensor (on the wheels) → malfunctions due to cable damage or dirt on the sensor.

Fuel level sensor → sticking float, oxidation of contacts.

Gearbox and clutch sensors → open or poor connections may cause transmission errors.

3. Symptoms of Malfunctions

Blown fuses.

Errors on the instrument cluster (ECU, ABS, EBS, cooling).

Rough engine operation or failure to start.

Power surges, flickering headlights and backlighting.

4. Troubleshooting Recommendations

Regularly check and clean connectors.

Use dielectric grease to protect contacts.

Check sensor resistance with a multimeter.

Replace damaged harnesses or install repair plugs.

Check the ground and condition of battery cables.