Turn ignition off. Disconnect ABS relay. Using DVOM, measure resistance between ABS relay terminals indicated. See ABS RELAY RESISTANCE table. See Fig 1 .

ABS RELAY RESISTANCE

Terminals	Ohms
"d" and "e"	60-100
"b" and "c"	More Than 10,000
"b" and "f"	Less Than 5
"f" and "j"	Less Than 50-90
"b" and "j"	Less Than 50-90
"c" and "g"	More Than 10,000

Fig 1: Identifying ABS Relay Terminals

Apply 12 volts to ABS relay terminal "e" and ground to terminal "d". Set DVOM on 20-k/ohm scale. Measure resistance between ABS relay terminals "b" and "f". See Fig 1 . Resistance should be more than 10,000 ohms.
Set DVOM on 200-ohm scale. Measure resistance between ABS relay terminals "c" and "f". See Fig 1 . Resistance should be less than 5 ohms.
Apply 12 volts to ABS relay terminal "h" and ground to terminal "j". Set DVOM on 200-ohm scale. Measure resistance between ABS relay terminals "c" and "g". See Fig 1 . Resistance should be less than 5 ohms. Remove 12 volts and ground from relay terminals.
Set DVOM to diode check mode. Connect DVOM negative lead to terminal "f" and positive lead to terminal "h". See Fig 1 . Continuity should be present. Connect DVOM positive lead to terminal "f" and negative lead to terminal "h". See Fig 1 . Continuity should not be present. If ABS relay fails any test, replace relay.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

ABS Relay Check

Use the Manual With the Right Hardware

When to See a Mechanic

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