ABS Pump Motor Temperature Too High

Where it lives

For C05AA, the description names the pump as the part involved.

Check these first

• An ABS pump motor that runs hot from overuse or binding
• Low brake fluid making the pump work harder
• A restricted or blocked hydraulic passage in the ABS unit
• Excessive ABS cycling from a wheel speed fault
• A failing ABS pump motor with high internal resistance

What to do next

1. Check the brake fluid level and look for leaks
2. Check for related wheel speed sensor codes causing extra cycling
3. Let the pump cool and watch the pump temperature live data
4. Command the ABS pump with a scan tool and listen for binding
5. Replace the ABS pump motor or unit if it keeps overheating
6. Clear the code and retest

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