What it does
Provides a friction surface and absorbs heat. Surface condition, runout, thickness, mounting, and hub condition interact.
A component is one possibility inside a larger system. Confirm its inputs, outputs, connections, and any bounded planning context before replacement.
- 01ObserveProvides a friction surface and absorbs heat. Surface condition, runout, thickness, mounting, and hub condition interact
- 02Check inputsPower, ground, command, mounting, and conditions
- 03CompareInspect both sides and the complete wheel-end / Clean and verify mounting surfaces
- 04Budget5 currencies · USD / CAD / EUR / GBP / AUD · planning range only
- 05DecideReject or support the component cause
- 06VerifyApply the exact repair and recreate the symptom
Follow the sequence, stop when evidence changes the path, and verify the exact vehicle information before acting.
Where it is located
Location and access vary by platform, engine, drivetrain, market, and installed equipment. Identify the exact component using the vehicle’s service information before disconnecting or removing anything.
Symptoms are clues—not proof
Start with the system symptom and operating conditions. A failed connection, control input, related component, incorrect prior repair, or mechanical condition can imitate component failure.
Use the exact safety procedure
Confirm isolation, support, pressure, temperature, and stored-energy hazards for the vehicle before testing.
Testing focus
Inspect both sides and the complete wheel-end
Record the result and compare it only with authoritative information for the exact vehicle and test conditions.
Clean and verify mounting surfaces
Record the result and compare it only with authoritative information for the exact vehicle and test conditions.
Measure runout and thickness only against exact limits
Record the result and compare it only with authoritative information for the exact vehicle and test conditions.
Correct caliper, hub, wheel, or torque causes before condemning the rotor
Record the result and compare it only with authoritative information for the exact vehicle and test conditions.
Replacement boundary
IAR does not publish a universal replacement procedure for this component.
This rounded range is a planning aid for the related service topic after diagnosis. It is not a diagnosis, part recommendation, or quote.