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  • Symptoms of OBD Codes: Understand the signs and issues your vehicle may display for each code.
  • Root Causes of OBD Codes: Identify potential reasons behind the fault, helping you address the problem effectively.
  • Expected Location of OBD Issues: Pinpoint where the issue is likely to occur, simplifying diagnostics and repair.

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B2000ISO/SAE Reserved
B2097Compass Module Failure (Ford)
B2100Door Driver Key Cylinder Switch Failure
B2101Head Rest Switch Circuit Failure
B2102Antenna Circuit Short to Ground
B2103Antenna Not Connected
B2104Door Passenger Key Cylinder Switch Failure
B2105Throttle Position Input Out of Range Low
B2106Throttle Position Input Out of Range High
B2107Front Wiper Motor Relay Circuit Short to Vbatt
B2108Trunk Key Cylinder Switch Failure
B2109Heated Wind Shield Relay Short to Vbatt (changed from Failure 2/6/97)
B2110Front Wiper Motor Relay Circuit Open (changed from Failure 2/6/97)
B2111All Door Lock Input Short to Ground
B2112Door Driver Set Switch Stuck Failure
B2113Heated Windshield Input Short to Ground
B2114Front Washer Input Short to Ground
B2115Rear Washer Input Short to Ground
B2116Door Driver Reset Switch Stuck Failure
B2117Driver Side, Side mount Airbag Low capacitance on Squib
B2118Passenger Side, Side mount Airbag Low capacitance on Squib
B2119Compressor Failure
B2120Door Passenger Set Switch Stuck Failure
B2122Driver Side Satellite Communication Circuit Short to Ground
B2123Passenger Side Satellite Communication Circuit Short to Ground
B2124Door Passenger Reset Switch Stuck Failure
B2128Central Lock Motor Failure
B2129Central Lock Feedback Failure
B2130Double Lock Timeout Failure
B2131Double Lock Feedback Failure
B2132Dimmer switch Circuit Short to Gnd
B2133Brake Motor Warning lamp Circuit Failure
B2134Brake Motor Warning lamp Circuit Short to Vbatt
B2135Park Brake Applied Warning Lamp Circuit Failure
B2136Park Brake Applied Warning Lamp Circuit Short To Battery
B2139Data Mismatch (receive data does not match what was expected)
B2141NVM Configuration Failure
B2142NVM TIC Failure
B2143NVM Memory Failure
B2144NVM Alarm Data Failure
B2145NVM RF HR Failure
B2146Seat Recline Motor Position Out of Range
B2148PWM Input Circuit Failure
B2149Seat Front Vertical Motor Position Out of Range
B2150Power Supply #1 Circuit Short to Ground
B2151Power Supply #2 Circuit Short to Ground
B2152Seat Rear Vertical Motor Position Out of Range
B2153Rear Echo Sensor Circuit Failure
B2154Front Echo Sensor Circuit Failure
B2155Seat Horizontal Motor Position Out of Range
B2156Rear Doppler Sensor Circuit Failure
B2157Front Doppler Sensor Circuit Failure
B2158Seat Recline Motor Memory Position Out of Range
B2159Memory #1 output Short to Ground
B2160Memory #1 output Short to VBatt
B2161Seat Front Vertical Motor Memory Position Out of Range
B2162Data Mismatch #2 (receive data does not match what was expected)
B2163Clutch Position Fault
B2164Seat Rear Vertical Motor Memory Position Out of Range
B2165Gear shift position Fault
B2166Gear select position Fault
B2167Seat Horizontal Motor Memory Position Out of Range
B2168Unable to confirm Unlock Condition
B2169Unable to confirm lock Condition
B2170Steering Column Lock Switch Circuit Failure
B2172Inertia Switch input Circuit Open
B2174Window Driver Rear Remote Up Switch Short to Battery
B2175A/C Request Signal Circuit Short to Ground
B2176Overdrive switch circuit short to Vbatt
B2177Interior Scanning Sensor Circuit Failure
B2178Window Driver Rear Remote Down Switch Short to Battery
B2179Front Wiper Select Switch “A” Short to Ground
B2180Front Wiper Select Switch “B” Short to Ground
B2181Front Wiper Select Switch “C” Short to Ground
B2182Window Passenger Front Remote Up Switch Short to Battery
B2183Front Wiper Select Switch “H” Short to Ground
B2184Front Wiper Select Switch “W” Short to Ground
B2185Rear Wiper Select Switch “D” Short to Ground
B2186Window Passenger Front Remote Down Switch Short to Battery
B2187Rear Wiper Select Switch “B” Short to Ground
B2188Rear Wiper Select Switch “E” Short to Ground
B2190Window Passenger Rear Remote Up Switch Short to Battery
B2194Window Passenger Rear Remote Down Switch Short to Battery
B2195Driver Window Up / Down Power Circuit Short to Ground
B2196Passenger Window Up / Down Power Circuit Short to Ground
B2197TV Module Error
B2198TrafficMaster Module Error
B2199VICS Module Error
B2200No Communication to TV Module (No Fitting of TV)
B2201No Communication With Traffic MasterModule
B2202No Communication to VICS Module (No Fitting of VICS)
B2203CD-ROM Error
B2204GPS Antenna Connection Open or Short
B2205GPS Receiver Error
B2206Gyroscope Error
B2207ECU ROM Checksum Error
B2208Communication Link to Display and Switch Module Error
B2209Interior Lamp Override Switch Open Circuit
B2210Interior Lamp Override Switch Short to Ground
B2211Low Coolant Lamp Output Circuit Short to Battery
B2214Window Passenger Front Up Switch Short to Battery
B2215Window Passenger Front Down Switch Short to Battery
B2219Window Driver Front Current Feedback Exceeded
B2220Window Driver Rear Current Feedback Exceeded
B2221Window Passenger Front Current Feedback Exceeded
B2222Window Passenger Rear Current Feedback Exceeded
B2223Mirror Driver Drive Circuit Failure
B2224Mirror Passenger Drive Circuit Failure
B2225Front Crash Sensor Mount Fault
B2226Front Crash Sensor Internal Fault
B2227Front Crash Sensor Driver Communications Fault
B2228Air Bag Driver Circuit Short to Ground – Loop #2
B2229Air Bag Passenger Circuit Short to Ground – Loop #2
B2230Air Bag Driver Circuit Short to Battery – Loop #2
B2231Air Bag Passenger Circuit Short to Battery – Loop #2
B2232Air Bag Driver Circuit Open – Loop #2
B2233Air Bag passenger Circuit Open – Loop #2
B2234Air Bag Driver Inflator Circuit Resistance Low on Squib – Loop #2
B2235Air Bag Passenger Inflator Circuit
B2236Weak or Defected Electric Vehicle Battery Module Fault
B2237Vehicle Signal indicating Park While VSS Present
B2238Power Cable For Power Sliding Door Broken
B2239Rear Cargo Door Set Switch Stuck (Short to Ground)
B2240Rear Cargo Door Reset Switch Stuck (Short to Ground)
B2241Rear Cargo Door Lock Circuit Short to Ground
B2242Rear Cargo Door Unlock Circuit Open
B2243Driver Rear Door Ajar Circuit Open
B2244Driver Sliding Door Ajar Circuit Short to GND
B2245Passenger Rear Door Ajar Circuit Open
B2246Passenger Sliding Door Ajar Circuit Short to GND
B2247EV Battery Pack Temperature Fault
B2248Heated Windshield Relay Coil Circuit Failure
B2249Head Lamp Relay Coil Short to Battery
B2250All Doors Unlock Relay Circuit Failure
B2251Parklamp Output Relay Driver Circuit Failure
B2252Parklamp Output Relay Dirver Short to Battery
B2300Seat Driver Memory Position Error
B2301Seat Passenger Memory Position Error
B2302Seat Headrest Feedback Potentiometer Circuit Failure
B2303Seat Headrest Feedback Potentiometer Circuit Open
B2304Seat Headrest Feedback Potentiometer Circuit Short to Battery
B2305Seat Headrest Feedback Potentiometer Circuit Short to Ground
B2306Seat Headrest Motor Stalled
B2310Mirror Driver Memory Position Error
B2311Mirror Passenger Memory Position Error
B2312Mirror Passenger Horizontal Feedback Potentiometer Circuit Failure
B2313Mirror Passenger Horizontal Feedback Potentiometer Circuit Open
B2314Mirror Passenger Horizontal Feedback Potentiometer Circuit Short to Battery
B2315Mirror Passenger Horizontal Feedback Potentiometer Circuit Short to Ground
B2316Mirror Passenger Vertical Feedback Potentiometer Circuit Failure
B2317Mirror Passenger Vertical Feedback Potentiometer Circuit Open
B2318Mirror Passenger Vertical Feedback Potentiometer Circuit Short to Battery
B2319Mirror Passenger Vertical Feedback Potentiometer Circuit Short to Ground
B2320Mirror Driver Horizontal Feedback Potentiometer Circuit Failure
B2321Mirror Driver Horizontal Feedback Potentiometer Circuit Open
B2322Mirror Driver Horizontal Feedback Potentiometer Circuit Short to Battery
B2323Mirror Driver Horizontal Feedback Potentiometer Circuit Short to Ground
B2324Mirror Driver Vertical Feedback Potentiometer Circuit Failure
B2325Mirror Driver Vertical Feedback Potentiometer Circuit Open
B2326Mirror Driver Vertical Feedback Potentiometer Circuit Short to Battery
B2327Mirror Driver Vertical Feedback Potentiometer Circuit Short to Ground
B2328Column Reach Feedback Potentiometer Circuit Failure
B2329Column Reach Feedback Potentiometer Circuit Open
B2330Column Reach Feedback Potentiometer Circuit Short to Battery
B2331Column Reach Feedback Potentiometer Circuit Short to Ground
B2332Column Tilt Feedback Potentiometer Circuit Failure
B2333Column Tilt Feedback Potentiometer Circuit Open
B2334Column Tilt Feedback Potentiometer Circuit Short to Battery
B2335Column Tilt Feedback Potentiometer Circuit Short to Ground
B2336Mirror Switch Assembly Circuit Failure
B2337Mirror Switch Assembly Circuit Open
B2338Mirror Switch Assembly Circuit Short to Battery
B2339Mirror Switch Assembly Circuit Short to Ground
B2340Column Reach Motor Stalled
B2341Column Tilt Motor Stalled
B2342Seat Switch Reference Voltage Positive Common Open Circuit
B2343Seat Switch Reference Voltage Positive Common Supply Low Voltage
B2344Seat Switch Reference Voltage Positive Common Supply Voltage Fault
B2345Seat Switch Reference Voltage Negative Common Open Circuit
B2346Mirror Switch Reference Voltage Positive Common Open Circuit
B2347Mirror Switch Reference Voltage Positive Common Supply Low Voltage
B2348Mirror Switch Reference Voltage Positive Common Supply Voltage Fault
B2349Mirror Switch Reference Voltage Negative Common Open Circuit
B2350Steering Column Switch Circuit Short to Battery
B2351Steering Column Switch Circuit Failure
B2352Driver Memory Power Switch Indicator Circuit Short to Battery
B2353Driver Mirror Power Driver Circuit Short Ground
B2354Driver Mirror Horizontal / Vertical Feedback Potentiometer Circuit Open
B2355Passenger Mirror Horizontal / Vertical Feedback Potentiometer Circuit Open
B2357Driver Window Down Current Sense Low Circuit Failure
B2362Remote Open/Close signal Circuit Short to Ground
B2363Optical Sensor System Failure
B2364Fuel Filler Door Circuit Open
B2365B-pillar Power Sliding Door Open/Close Switch Input Ckt Short to Gnd
B2366IP Power Sliding Door Open/Close switch Ckt Short to Gnd
B2367Power Sliding Door Override Switch Input Ckt Short to Gnd
B2368Steering Column Switch Circuit Out of Range
B2369Chime OUTPUT Request Ckt Short to Ground
B2373LED #1 Circuit Short to Battery
B2374Power Sliding Detent (Latch) Circuit Failure
B2380Heater Coolant Temp sensor circuit Short to GND
B2381Heater Coolant Temp sensor circuit Open
B2384Audio Reverse Aid Mute Input Ckt Failure
B2385Audio Navigation Mute Input Ckt Failure
B2401Audio Tape Deck Mechanism Fault
B2402Audio CD/DJ Thermal Shutdown Fault
B2403Audio CD/DJ Internal Fault
B2404Audio Steering Wheel Switch Circuit Fault
B2405Audio Single-Disc CD Player Thermal Shutdown Fault
B2406Audio Single-Disc CD Player Internal Fault
B2416Climate Control Recirculation Actuator Out of Limits
B2425Remote Keyless Entry Out of Synchronization
B2426Passenger Solar Radiation Sensor Circuit Open
B2427Passenger Solar Radiation Sensor Circuit Short to Ground
B2428A/C Post Heater Sensor #2 Circuit Failure
B2429A/C Post Heater Sensor #2 Circuit Short to Ground
B2431Transponder Programming Failed
B2432Drivers Seat Belt Buckle Switch Circuit Open
B2433Drivers Seat Belt Buckle Switch Circuit Short to Battery
B2434Drivers Seat Belt Buckle Switch Circuit Short to Ground
B2435Drivers Seat Belt Buckle Switch Resistance out of Range
B2436Passengers Seat Belt Buckle Switch Circuit Open
B2437Passengers Seat Belt Buckle Switch Circuit Short to Battery
B2438Passengers Seat Belt Buckle Switch Circuit Short to Ground
B2439Passengers Seat Belt Buckle Switch Resistance out of Range
B2440Passenger Side, Side crash sensor mount fault
B2441Driver Side, Side crash sensor mount fault
B2442Intrusion Sensor Fault
B2443Powertrain Performance Mode Switch Circuit failure
B2444Driver Side Crash Sensor Internal Fault
B2445Passenger Side Crash Sensor Internal Fault
B2446RESCU/VEMS Input Circuit Open
B2447RESCU/VEMS Input Circuit Short to Battery
B2448RESCU/VEMS Input Circuit Short to Ground
B2449Aux Heater Glow Plug Circuit Short to Ground
B2450Aux Heater Glow Plug Circuit Open
B2451Aux Heater Fuel Pump Circuit Short to Ground
B2452Aux Heater Fuel Pump Circuit Open
B2453Aux Heater Blower Fan Circuit Short to Ground
B2454Aux Heater Blower Fan Circuit Open
B2455Aux Heater Blower Faulted
B2456Aux Heater Coolant Sensor Circuit Short to Ground
B2457Aux Heater Coolant Sensor Circuit Open
B2458Aux Heater Overheat Sensor Circuit Short to Ground
B2459Aux Heater Overheat Sensor Circuit Open
B2460Aux Heater Flame Sensor Circuit Short to Ground
B2461Aux Heater Flame Sensor Circuit Open
B2462Aux Heater Flame Out Fault
B2463Aux Heater Overheat Fault
B2464Aux Heater Start Time Exceeded
B2465Aux Heater Start Counter Overrun/System Locked (same as below ?)
B2466Aux Heater Overheat Counter Overrun/System Locked
B2467Aux Heater Cool Down Time Exceeded (may be con to a453-5 )
B2468Aux Heater Coolant Pump Circuit Short to Ground
B2469Aux Heater Coolant Pump Circuit Open
B2470Interior Fan Control Circuit Short to Ground
B2471Interior Fan Control Circuit Open
B2472Fog Lamp Switch Failure
B2473Passenger Door Disarm Switch ckt Short to Ground
B2474Passenger Door Lock Switch Circuit Shorted to Ground
B2475Passenger Door Unlock Switch Circuit Shorted to Ground
B2476RADIO PRESENT SWITCH Ckt Failure
B2477Module Configuration Failure
B2478ANTI THEFT INPUT SIGNAL SHORT TO GROUND
B2479BRAKE PARK SWITCH CIRCUIT SHORT TO GROUND
B2480LF CORNER LAMP OUTPUT Ckt Short to Battery
B2481Convertible Top Up/Down switch Fault
B2482RF CORNER LAMP OUTPUT Ckt Short to Battery
B2483Enable Signal Open Circuit
B2484Disable Signal Short to Ground
B2485LF SIDE REPEATER LAMP OUTPUT Ckt Short to Battery
B2487RF SIDE REPEATER LAMP OUTPUT Ckt Short to Battery
B2489UNDERHOOD LAMP OUTPUT CIRCUIT Failure
B2490UNDERHOOD LAMP OUTPUT CIRCUIT Short to Battery
B2491RF PARK LAMP OUTPUT CIRCUIT Short to Battery
B2492Already Programmed (Test Mode DTC Only !!!)
B2493LF PARK LAMP OUTPUT CIRCUIT Short to Battery
B2494ANTI THEFT HORN OUTPUT CIRCUIT Short to Batt
B2495ANTI THEFT HORN OUTPUT CIRCUIT Failure
B2496ANTI THEFT HORN OUTPUT CIRCUIT Short to Gnd
B2499COURTESY LAMP OUTPUT Failure
B2500COURTESY LAMP OUTPUT Ckt Short to Battery
B2501LF LAMP LOW BEAM CIRCUIT Failure
B2502LF LAMP LOW BEAM CIRCUIT Short to Battery
B2503RF LAMP LOW BEAM CIRCUIT Failure
B2504RF LAMP LOW BEAM CIRCUIT Short to Battery
B2505LF LAMP HIGH BEAM CIRCUIT Failure
B2506LF LAMP HIGH BEAM CIRCUIT Short to Battery
B2507RF LAMP HIGH BEAM CIRCUIT Failure
B2508RF LAMP HIGH BEAM CIRCUIT Short to Battery
B2509Rear Fog Lamp Switch Circuit Failure
B2510Main Blower Motor Relay Circuit Short to Battery
B2511Horn Output Relay Circuit Short to Battery
B2512Front Fog Lamp Relay Ckt Short to Battery
B2513Blower (Fan) Circuit Failure
B2514Blower (Fan) Circuit Short to Vbatt
B2515Heater Blower Relay Circuit Failure
B2516Blower Control Circuit Failure
B2517Emergency Power Off System Faulted
B2518Compressor Overtemp Fault
B2519High Mount Stop Lamp Circuit Failure
B2520High Mount Stop Lamp Circuit Short to Battery
B2523License Lamp Circuit Failure
B2524License Lamp Circuit Short to Battery
B2525Left Rear Backup Lamp Circuit Failure
B2526Left Rear Backup Lamp Circuit Short to Battery
B2527Left Rear Stop lamp Circuit Failure
B2528Left Rear Stop lamp Circuit Short to Battery
B2529Left Rear Turn Lamp Circuit Failure
B2530Left Rear Turn Lamp Circuit Short to Battery
B2531Right Rear Backup Lamp Circuit Failure
B2532Right Rear Backup Lamp Circuit Short to Battery
B2533Right Rear Stop lamp Circuit Failure
B2534Right Rear Stop lamp Circuit Short to Battery
B2535Right Rear Turn Lamp Circuit Failure
B2536Right Rear Turn Lamp Circuit Short to Battery
B2539Aux A/C Mode Position Reference Circuit Short to Ground
B2540Aux A/C Mode Position Reference Circuit Short to Battery
B2543Aux A/C Control Switch Reference Circuit Short to Ground
B2544Aux A/C Control Switch Reference Circuit Short to Battery
B2545System Power Relay Circuit Short to Battery
B2546System Power Relay Circuit Failure
B2550LAMP DOME OUTPUT Circuit Short to Ground
B2553Disable Signal Output Circuit Short to Battery
B2554LAMP DOME OUTPUT Circuit Failure
B2555LAMP DOME OUTPUT Circuit Short to Battery
B2556Enable Signal Circuit Short to Battery
B2557Left Power Sliding Door Open/Close Output Circuit Short to Battery
B2558Right Power Sliding Door Open/Close Output Circuit Short to Battery
B2559Aux A/C Blower Motor Relay Circuit Short to Battery
B2560Aux A/C Blower Motor Relay Circuit Short to Ground
B2561Aux A/C Blower Speed 1 Circuit Failure
B2562Aux A/C Blower Speed 1 Circuit Short to Ground
B2563Aux A/C Blower Speed 2 Circuit Failure
B2564Aux A/C Blower Speed 2 Circuit Short to Ground
B2565Right Tail Lamp Circuit Failure
B2566Right Tail Lamp Circuit Short to Ground
B2567Reverse Mirror Output Circuit Failure
B2568Reverse Mirror Output Circuit Short to Ground
B2569Liftgate Disarm Switch Circuit Short to Ground
B2570Right Lamp Outage Signal Circuit Short to Ground
B2571Left Lamp Outage Signal Circuit Short to Ground
B2580Aux Blower Sense Switch Circuit Failure
B2581Passenger Seat Occupant Detection Circuit Short To Ground
B2582Passenger Seat Occupant Detection Circuit Open
B2583Child Seat Detection Circuit Short to Ground
B2584Child Seat Detection Circuit Open
B2585Anti Theft Input Signal Circuit Short To Battery
B2586Headlamp Mode Select Circuit Failure
B2587Passenger Seat Occupant Detection Circuit Short To Battery
B2588Child Seat Detection Circuit Short To Battery
B2589Unexpected Door Reversal During Close
B2590Vehicle Park/Speed Signal Circuit Failure
B2591Detent Signal Missing During Unlatch
B2592PSD Not Fully Closed (Module Commanded Successfully)
B2593Power Sliding Door Opened During Module Close Command
B2594No Movement Detected After an Unlatch During Power Open
B2595Anti Theft Input Signal Circuit Failure
B2596Headlamp Aim Output Relay Circuit Short To Battery
B2597Headlamp Aim Output Relay Circuit Failure
B2598Headlamp Relay Circuit Failure
B2599Tailgate Release Open Circuit
B2600Double Locking Door Motor Frozen
B2601No Latch Signal Sensed on Closing and Door Reversed
B2602Missing Latch Signal During Power Sliding Door Unlatch
B2603PSD Not Fully Closed During Self-Test
B2604Power Sliding Door On/Off Switch Open Circuit
B2605Disable Signal Open Circuit
B2606A/C Temperature Sensor Out of Range
B2796No Communication In Immobilizer System
B2799Toyota: Engine Immobiliser System Malfunction GM: Suspension control select switch circuit open
B2AAAScanner Communication Incompatibility