Bendix EC-60 UDS 216 / SPN 1045 FMI 2 — Stop Lamp Switch Defective

Code Details

Plain-English Meaning

The EC-60 uses the stop lamp switch signal to detect when the driver is braking. The switch is defective — sending an unexpected or inconsistent signal. Without reliable brake detection, ATC and ESP cannot properly coordinate their responses with driver braking intent.

The Bendix EC-60 table maps UDS code 216, blink code 12-02, J1587 055-02, and J1939 SPN 1045 FMI 2 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

• ATC/ESP lamp on
• ATC may activate at unexpected times or fail to disengage correctly
• Stop lamps on the vehicle may or may not function correctly depending on the fault type
• ABS function unaffected
• Code may be stored even when driving normally

Possible Causes

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

• Stop lamp switch signal wire shorted, switch stuck closed, or circuit fault sending a false brake signal
• Corroded or loose stop lamp switch connector
• Stop lamp switch mechanically out of adjustment
• Brake light fuse blown, affecting the circuit the EC-60 reads
• Harness damage to the stop lamp switch feed to the EC-60

First Checks

• Check brake light operation — non-functioning brake lights confirm a switch or circuit fault.
• Measure voltage at the EC-60 stop lamp input pin with brake applied and released; it should switch between near-zero and battery voltage.
• Inspect the stop lamp switch connector and physical adjustment at the pedal bracket.
• Check the brake light fuse.
• Use Bendix ACOM live data to confirm whether the EC-60 sees the stop lamp signal when the pedal is pressed.

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