Bendix EC-60 UDS 3 / SPN 793 FMI 13 — AA Left WSS Configuration Error

Code Details

Plain-English Meaning

The EC-60 found a mismatch between its stored configuration for the front axle left WSS channel and the actual installation or programming. This is typically a setup issue — a module swap, a tire-size change, or an axle modification not reflected in EC-60 parameters — rather than a hardware failure.

The Bendix EC-60 table maps UDS code 3, blink code 14-10, J1587 005-13, and J1939 SPN 793 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 ATC/ESP lamps on
• Code appears after ECU replacement, axle reconfiguration, or tire-size change
• Sensor may test electrically normal
• Code returns after clearing until configuration is corrected
• System remains disabled until the mismatch is resolved

Possible Causes

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

• Replacement EC-60 not programmed to match the vehicle axle layout
• Tire size or sensor-count parameter in the EC-60 does not reflect the actual setup
• Wrong sensor type (active vs. passive) installed for the position the EC-60 expects
• Axle or suspension modification not updated in EC-60 parameters
• Corrupt or default configuration loaded after a module swap

First Checks

• Connect Bendix ACOM and retrieve the full EC-60 configuration.
• Compare programmed axle layout, sensor type, and tire size to the vehicle build sheet or door label.
• If the module was recently replaced, confirm configuration was transferred from the original or set per Bendix guidelines.
• Verify the physical sensor at this position matches the type the EC-60 expects.
• After correcting configuration, clear codes and verify on a test drive.

Can I Keep Driving?

ABS is disabled at the affected wheel channel while this fault is active. Normal hydraulic or air base braking continues unaffected — the vehicle can brake, but anti-lock protection is not available at that corner. Drive conservatively to a service location. Do not operate in conditions where ABS intervention would be likely, such as slippery surfaces or loaded highway braking. Clear only after root-cause repair.

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