Bendix EC-60 UDS 98 / SPN 1808 FMI 9 — YRS CAN Timeout

Code Details

Plain-English Meaning

The EC-60 is not receiving CAN messages from the yaw rate sensor within the expected time window. The YRS transmits its measurements over a dedicated sensor CAN bus to the EC-60; a timeout means that communication link is broken or the sensor has stopped transmitting. All ESP yaw-correction functions that depend on real-time yaw rate data are suspended until communication resumes.

The Bendix EC-60 table maps UDS code 98, blink code 22-05, J1587 103-09, and J1939 SPN 1808 FMI 9 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

• ESP/stability lamp on
• ESP yaw-correction suspended — no real-time yaw data reaching the EC-60
• ABS and ATC continue to function normally through their own signal paths
• Other sensor codes (SAS, LAS) may appear simultaneously if they share a supply or CAN segment with the YRS
• Code is typically persistent until communication is physically restored

Possible Causes

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

• CAN wire between YRS and EC-60 damaged, cut, or corroded — the sensor has no way to transmit without this link
• YRS supply voltage or ground fault — a sensor without power cannot transmit on any bus
• Corroded or partially disconnected YRS connector that is breaking the CAN path
• Failed YRS CAN transceiver — the sensor may be powered but its communication circuit is no longer functioning
• Another fault on the sensor CAN segment loading the bus and blocking the YRS messages from reaching the EC-60

First Checks

• Inspect the YRS connector and CAN wiring for damage, corrosion, or disconnected pins — a broken CAN wire is the most common cause of a timeout.
• Measure supply voltage and ground at the YRS connector with ignition on; no power means no CAN output regardless of sensor condition.
• If accessible, check resistance between CAN High and CAN Low at the YRS connector; values far from 60 Ω indicate a missing termination or bus fault.
• If multiple sensor codes appeared at the same time, check for a shared supply or backbone wiring fault before diagnosing each sensor individually.
• After restoring the physical connection, clear codes and confirm the EC-60 shows the YRS as active in Bendix ACOM live data.

Can I Keep Driving?

A stability sensor fault (yaw rate, steering angle, or lateral acceleration) disables ESP stability intervention while leaving ABS and ATC intact. The vehicle handles as it would without electronic stability control. Drive with that in mind — cornering, evasive maneuvers, and braking on slippery surfaces carry a higher risk. Stability sensor faults should be addressed before returning the vehicle to regular line-haul or severe-weather service.

Related Lookup Pages

• FMI 9 explanation
• Bendix manufacturer hub
• ABS / ATC / ESP fault codes
• J1939 fault codes
• ABS Light symptom page
• Brake Warning Light symptom page
• Search this code