Code
P2299
Generic
P — Powertrain
Brake Pedal Position/Accelerator Pedal Position Incompatible
Views:
UK: 20
EN: 28
RU: 39
AI status
Completed
Completed
100%
Causes
- Faulty accelerator pedal position sensor (APPS)
- Faulty brake pedal position sensor or brake switch
- Damaged wiring harness or poor connector(s) at pedal sensors or PCM
- Short to power or ground between pedal sensor circuits
- Corroded or loose terminals
- Incorrect pedal assembly adjustment or mechanical interference
Symptoms
- Malfunction Indicator Lamp (MIL) or check engine light illuminated
- Reduced engine power or limp-home mode activated
- Cruise control disabled
- Poor throttle response or engine not responding to accelerator input
- Unexpected engine RPM behavior when applying brake and accelerator
- Transmission interlock or gear selection issues on some vehicles
What to check
- Read and record all stored codes and freeze frame data with a scan tool
- Inspect connectors and wiring at the accelerator pedal module and brake switch for damage, corrosion, or looseness
- Check vehicle battery voltage and ground integrity
- Use a scan tool to view live data for APP sensors (both channels if present) and BPP/switch status while operating pedals
- Verify proper reference and supply voltages to pedal sensors (typically key on)
- Check for related communication codes on the CAN bus or other modules
Signal parameters
- Accelerator pedal position (APPS) sensors: typical idle/rest voltages ~0.2–1.0 V, full travel ~3.5–4.8 V (two-channel systems show similar but slightly offset voltages)
- Brake pedal switch: often a digital signal (open/closed) or low-voltage sensor; expected states are OFF at rest and ON when brake depressed
- Sensor supply voltage (reference): typically +5 V (verify exact value for vehicle)
- Ground: near 0 V; check for voltage drop under load
- Correlation: APP channel A vs channel B should track linearly and remain within manufacturer correlation limits; BPP should not indicate 'brake applied' while APP indicates high throttle unless intentional
Diagnostic algorithm
- Connect a quality scan tool. Record P2299 plus any other codes and freeze frame data. Note battery voltage during freeze frame.
- Visually inspect wiring and connectors at the accelerator pedal module and brake pedal switch/module. Repair any physical damage, corrosion or loose connections.
- With the key ON (engine off), verify sensor reference voltage and ground at the pedal connector(s). Compare to expected values.
- Use live-data mode to monitor APP sensor channels and BPP/switch while slowly operating pedals. Look for inconsistent, stuck, or non-linear readings and for APP channels not agreeing with each other.
- Perform a wiggle test on the harness and connectors while monitoring live data to find intermittent faults.
- If wiring and supply are good but signals are out of range, bench-test or replace the suspect pedal sensor or brake switch. If two-channel APP is present, compare both channels — if one is bad replace the pedal assembly.
- If sensors and wiring check good, check for related module communication errors; inspect CAN bus wiring and module grounds.
- Check for available PCM/ECM software updates or known-service-bulletins that address pedal correlation or calibration. Relearn/calibrate pedal positions per manufacturer procedure if required.
- Clear codes and perform a test drive under the conditions that previously set the code. Re-scan to confirm repair or further diagnostics if code returns.
- If the fault persists after sensors, wiring, and software attempts, evaluate the PCM/ECM for internal fault or intermittent module-level issues and consider replacement only after verifying all other causes.
Likely causes
- APPS sensor out of tolerance (one sensor reading does not correlate with the other)
- Brake switch/sensor returning an unexpected signal while APP shows throttle applied
- Broken or chafed harness causing cross-talk between brake and accelerator circuits
- Connector corrosion at pedal module or engine control module
- Recent pedal module replacement or PCM update that requires calibration
- Blown fuse or weak/erratic sensor supply voltage
Fault status
Status
P2299 - Brake Pedal Position/Accelerator Pedal Position Incompatible — controller detected inconsistent or conflicting signals between brake and accelerator pedal inputs.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
Workshop Manuals
Available brands with manuals
2
AUDI 11
6-speed manual gearbox 0B1, front-wheel drive — Workshop Manual (Edition 05.2014)
Workshop ManualAudi A3 (1997) – 1.6L 4-cylinder (2‑valve) Engine Mechanical Components Service Manual (AEH, AKL, APF) – Edition 07.2002
Workshop ManualAUDI A3 (2004) Workshop Manual — 2.0L FSI Turbo (4‑cyl, 4‑valve) Engine, Mechanics — Edition 03.2017
Workshop ManualAudi A3 2004 — Electrical System (Workshop Manual, Edition 02.2018)
Workshop ManualAudi A4 / A4 Cabriolet – 4.2 l V8 (5‑valve, timing chains) – Workshop Manual (Mechanics) – Edition 04.2007
Workshop ManualAudi A4 / A4 Cabriolet — Auxiliary Heater Workshop Manual (Edition 08.2004)
Workshop ManualAudi A4 / A4 Cabriolet (1.8T 4‑cyl turbo) — Motronic Injection & Ignition System Service Manual (Edition 01.2015)
Workshop ManualAudi A8 (2003) — Electrical System Workshop Manual (Edition 08.2014)
Workshop ManualAudi Q4 e-tron (Type F4) - Self-study Programme SSP 685
Workshop ManualAudi Q8 (2018) — Electrical System Workshop Manual (Edition 05.2019)
Workshop ManualAudi Servicing Manual — 7‑Speed Dual Clutch Transmission 0CJ / 0CL / 0CK / 0DN / 0DP / 0HL (Edition 05.2018)
Workshop ManualLAND ROVER 3
Land Rover Defender 300Tdi — Workshop Manual (1996 model year)
Workshop ManualLand Rover Defender Workshop Manual Supplement & Body Repair Manual (1999 & 2002 MY)
Workshop ManualLand Rover Range Rover — Electrical Library (LRL 0453ENG, 2002)
Workshop ManualYour experience will help others
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Code
P2299
LAND ROVER
P — Powertrain
Brake pedal position / accelerator pedal position incompatible
Views:
UK: 6
EN: 16
RU: 30
AI status
Completed
Completed
100%
Causes
- Faulty accelerator pedal position sensor (APPS)
- Faulty brake pedal position sensor or brake switch
- Damaged wiring harness or poor connector(s) at pedal sensors or PCM
- Short to power or ground between pedal sensor circuits
- Corroded or loose terminals
- Incorrect pedal assembly adjustment or mechanical interference
Symptoms
- Malfunction Indicator Lamp (MIL) or check engine light illuminated
- Reduced engine power or limp-home mode activated
- Cruise control disabled
- Poor throttle response or engine not responding to accelerator input
- Unexpected engine RPM behavior when applying brake and accelerator
- Transmission interlock or gear selection issues on some vehicles
What to check
- Read and record all stored codes and freeze frame data with a scan tool
- Inspect connectors and wiring at the accelerator pedal module and brake switch for damage, corrosion, or looseness
- Check vehicle battery voltage and ground integrity
- Use a scan tool to view live data for APP sensors (both channels if present) and BPP/switch status while operating pedals
- Verify proper reference and supply voltages to pedal sensors (typically key on)
- Check for related communication codes on the CAN bus or other modules
Signal parameters
- Accelerator pedal position (APPS) sensors: typical idle/rest voltages ~0.2–1.0 V, full travel ~3.5–4.8 V (two-channel systems show similar but slightly offset voltages)
- Brake pedal switch: often a digital signal (open/closed) or low-voltage sensor; expected states are OFF at rest and ON when brake depressed
- Sensor supply voltage (reference): typically +5 V (verify exact value for vehicle)
- Ground: near 0 V; check for voltage drop under load
- Correlation: APP channel A vs channel B should track linearly and remain within manufacturer correlation limits; BPP should not indicate 'brake applied' while APP indicates high throttle unless intentional
Diagnostic algorithm
- Connect a quality scan tool. Record P2299 plus any other codes and freeze frame data. Note battery voltage during freeze frame.
- Visually inspect wiring and connectors at the accelerator pedal module and brake pedal switch/module. Repair any physical damage, corrosion or loose connections.
- With the key ON (engine off), verify sensor reference voltage and ground at the pedal connector(s). Compare to expected values.
- Use live-data mode to monitor APP sensor channels and BPP/switch while slowly operating pedals. Look for inconsistent, stuck, or non-linear readings and for APP channels not agreeing with each other.
- Perform a wiggle test on the harness and connectors while monitoring live data to find intermittent faults.
- If wiring and supply are good but signals are out of range, bench-test or replace the suspect pedal sensor or brake switch. If two-channel APP is present, compare both channels — if one is bad replace the pedal assembly.
- If sensors and wiring check good, check for related module communication errors; inspect CAN bus wiring and module grounds.
- Check for available PCM/ECM software updates or known-service-bulletins that address pedal correlation or calibration. Relearn/calibrate pedal positions per manufacturer procedure if required.
- Clear codes and perform a test drive under the conditions that previously set the code. Re-scan to confirm repair or further diagnostics if code returns.
- If the fault persists after sensors, wiring, and software attempts, evaluate the PCM/ECM for internal fault or intermittent module-level issues and consider replacement only after verifying all other causes.
Likely causes
- APPS sensor out of tolerance (one sensor reading does not correlate with the other)
- Brake switch/sensor returning an unexpected signal while APP shows throttle applied
- Broken or chafed harness causing cross-talk between brake and accelerator circuits
- Connector corrosion at pedal module or engine control module
- Recent pedal module replacement or PCM update that requires calibration
- Blown fuse or weak/erratic sensor supply voltage
Fault status
Status
P2299 - Brake Pedal Position/Accelerator Pedal Position Incompatible — controller detected inconsistent or conflicting signals between brake and accelerator pedal inputs.
Repair difficulty: Medium
Diagnostic time: 1.0-3.0 hours
Workshop Manuals
Repair manuals for LAND ROVER
3
Land Rover Defender 300Tdi — Workshop Manual (1996 model year)
Workshop ManualLand Rover Defender Workshop Manual Supplement & Body Repair Manual (1999 & 2002 MY)
Workshop ManualLand Rover Range Rover — Electrical Library (LRL 0453ENG, 2002)
Workshop ManualYour experience will help others
+100 karma for a short comment :)
Was this AI description helpful?
Your feedback helps improve AI descriptions.
👍 Like
0
👎 Dislike
0
Send to email
