Bendix EC-60 UDS 210 / SPN 1069 FMI 13 — Tire Size Out of Range (Front to Rear)

Code Details

Plain-English Meaning

The EC-60 detected a tire size parameter outside the acceptable range. The EC-60 uses programmed tire circumference to calculate vehicle speed from WSS pulse data — an incorrect size can degrade ABS modulation accuracy and cause ATC/ESP errors.

The Bendix EC-60 table maps UDS code 210, blink code 12-10, J1587 079-13, and J1939 SPN 1069 FMI 13 to this ABS/ATC/ESP diagnostic entry. The Bendix source indicates an ABS and/or ATC/ESP warning lamp can be on for this entry. The EC-60 continuously monitors wheel speed sensor circuits, pressure modulation valve output drivers, supply voltage quality, J1939 network data from the engine and transmission controllers, and internal self-diagnostic routines. When any monitored value falls outside its acceptable range — or a circuit does not respond as the module expects — the EC-60 logs a diagnostic trouble code and may disable the affected ABS, ATC, or ESP function. Bendix ACOM Pro or a compatible diagnostic interface is the required tool for reading live sensor data, running actuator tests, performing calibrations, clearing latched codes, and adjusting EC-60 configuration parameters. Generic J1939 scan tools can read the SPN/FMI but cannot access EC-60-specific live data screens or configuration settings.

Common Symptoms

• ABS and/or ATC/ESP lamp on
• Code present after tire replacement with a different size than programmed
• Calculated vehicle speed may differ from GPS or dash speedometer
• ATC may activate incorrectly if wheel speed calculations are skewed
• Code may appear at any time if a new size was installed without updating the EC-60

Possible Causes

Possible causes may include the items below. The list is not a parts diagnosis.

• Tires replaced with a size significantly different from what is programmed in the EC-60
• EC-60 replaced with a module programmed to a different vehicle's tire size
• Tire circumference parameter corrupted or reset to default after a power loss
• Dual-tire spacing or rim size change not reflected in EC-60 programming
• Significant mismatch in tire sizes between front and rear axles

First Checks

• Measure the actual tire rolling circumference (or use the tire manufacturer's spec) and compare to the value programmed in the EC-60 via Bendix ACOM.
• Update the tire circumference parameter in the EC-60 to match the current tires.
• Confirm both drive axles use matching tires — significant size differences between axles can also trigger this fault.
• After updating, clear codes and verify on a test drive.

Can I Keep Driving?

ABS, ATC, and ESP brake-system codes should be handled conservatively. Normal base braking continues when ABS or stability functions are disabled, but the safety benefit of anti-lock and stability intervention is not available. If a brake warning lamp, red stop indicator, loss of braking performance, steering concern, or uncharacteristic vehicle behavior appears alongside this code, stop safely and follow OEM or fleet guidance before continuing.

Related Lookup Pages

• FMI 13 explanation
• Bendix manufacturer hub
• ABS / ATC / ESP fault codes
• ABS Light symptom page
• Brake Warning Light symptom page
• Search this code