P211E: Throttle Actuator B Control Module Processor

P211E is the processor fault for the control of throttle B on engines with two electronic throttles. No manufacturer documents this code publicly. The A version P2107 is well described: Ford treats it as an internal processor fault or lost link to the main CPU, detected in 60 ms, with MIL and an ETC lamp, and from 2024 reports it under P2108. Twin-throttle systems published by GM and Ford drive both throttles from the one engine computer and do not show a separate P211E. CARB requires on-board computers and their outputs to be monitored. If it appears, check ECU supply, grounds and software level before replacing hardware. Expect limp mode. Module performance for B is P211F.

Symptoms

• Engine and ETC warning lamps on
• Limp mode with reduced power

Most likely causes

• Control unit software fault (reflash)
• Voltage dips or poor ground at the control unit
• Internal hardware failure of the control unit

What to check, in order

Start with the simplest. You can tick off each step.

1. Check the pedal and throttle connectors
2. Use live data to confirm that both sensors rise smoothly and consistently
3. Clean the throttle if it has carbon buildup
4. Run the relearn procedure with the scanner if the manufacturer requires it
5. Replace the part identified by the diagnosis

Good to know

• It can trigger limp mode.
• It affects emissions.

What each character of P211E means

• P: Powertrain: engine and transmission
• 2: Generic code: same on every make
• 1: Air and fuel
• 1E: Specific fault in that system

Frequently asked questions

Can I keep driving with code P211E?

Be careful: the car may suddenly lose power. If it goes into limp mode, get off the highway and calmly make your way to a repair shop.

What causes code P211E?

The most common causes are: control unit software fault (reflash); voltage dips or poor ground at the control unit; internal hardware failure of the control unit.

Related codes

• P2107Throttle Actuator A Control Module Processor
• P211FThrottle Actuator B Control Module Performance
• P2108Throttle Actuator A Control Module Performance
• P0606Control Module Processor
• P210AThrottle Actuator B Control Motor Circuit/Open

Sources

• law.cornell.edu: 13 CCR 1968.2
• newtonnet.co.uk: fordobd2012
• fordservicecontent.com: OBDSM2400OUTPUT 16Jul2024 WSM final V2 MCS7001

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.