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BMW P2102 Code – Throttle Actuator Voltage Fault Limited Safe to drive : BMW vehicles only Applies only to : Not applicable to : This explanation does NOT apply to other brands. High Severity level : When Does This Code Appear on the Vehicles BMW P2102 shows when throttle actuator voltage is out of range. What This Code means on the Vehicles Indicates BMW-specific throttle module voltage irregularity. Why This is different from a generic OBD2 Code Standard OBD-II scanners report only “throttle voltage fault”. Common Situations That Trigger This Code Wiring issues; Actuator malfunction; ECU signal error. What Will NOT Fix This Code Replacing sensors unrelated to throttle actuator. How to Clear This Code on Vehicles Measure actuator voltage; inspect wiring; clear via ISTA/OEM tool. Related Manufacturer Specific Codes BMW P2100; BMW P2101 Previous Next

Audi U14D600 Code – Powertrain Module Communication Fault Limited Safe to drive : Audi vehicles only Applies only to : Not applicable to : This explanation does NOT apply to VW, BMW, Ford, Toyota, or other brands. High Severity level : When Does This Code Appear on the Vehicles Audi U14D600 appears with powertrain module faults affecting engine management. What This Code means on the Vehicles Indicates CAN bus communication problem with powertrain control module. Why This is different from a generic OBD2 Code Generic OBD-II cannot display UDS module faults specific to Audi ECU. Common Situations That Trigger This Code Damaged CAN wiring; ECU internal error; Battery voltage fluctuation. What Will NOT Fix This Code Replacing generic sensors or clearing code blindly. How to Clear This Code on Vehicles Inspect wiring harness, test ECU communication, use VCDS/OEM tool to clear code. Related Manufacturer Specific Codes Audi U14D601; Audi U14D602 Previous Next

Toyota C1201 Code – Traction Control Disabled Limited Safe to drive : Toyota vehicles only Applies only to : Not applicable to : This explanation does NOT apply to non-Toyota vehicles. Medium Severity level : When Does This Code Appear on the Vehicles Toyota C1201 appears when ABS or traction control warning lights are on. What This Code means on the Vehicles On Toyota vehicles, C1201 indicates the ABS system has disabled traction control due to an engine or hybrid fault. Why This is different from a generic OBD2 Code Toyota uses this code as a secondary warning, not a primary ABS failure. Common Situations That Trigger This Code Engine check light present; Hybrid system faults; Reduced traction control. What Will NOT Fix This Code Replacing ABS pump; Replacing wheel speed sensors. How to Clear This Code on Vehicles Diagnose and repair engine or hybrid fault first, then clear C1201. Related Manufacturer Specific Codes Toyota P0A80; Toyota P0171 Previous Next

BMW P2202 Code – EGR High Flow Detected Limited Safe to drive : BMW vehicles only Applies only to : Not applicable to : This explanation does NOT apply to other brands. Medium Severity level : When Does This Code Appear on the Vehicles P2202 occurs when EGR sensor detects higher-than-expected flow. What This Code means on the Vehicles BMW-specific high EGR flow warning. Why This is different from a generic OBD2 Code Generic scanners cannot detect flow above BMW-specific thresholds. Common Situations That Trigger This Code Valve stuck open; Exhaust leak; Wiring issues. What Will NOT Fix This Code Ignoring valve position; Replacing unrelated components. How to Clear This Code on Vehicles Inspect valve and wiring; clear code via ISTA. Related Manufacturer Specific Codes BMW P2200; BMW P2201 Previous Next

BMW U2302 Code – DSC Steering Angle Sensor Fault Limited Safe to drive : BMW vehicles only Applies only to : Not applicable to : This explanation does NOT apply to other brands. Medium Severity level : When Does This Code Appear on the Vehicles U2302 occurs when DSC module reports steering angle sensor fault. What This Code means on the Vehicles BMW-specific DSC steering angle sensor error. Why This is different from a generic OBD2 Code Generic scanners cannot report steering angle faults BMW-specifically. Common Situations That Trigger This Code Faulty sensor; Wiring harness issue; Module malfunction. What Will NOT Fix This Code Ignoring steering sensor; Replacing unrelated components. How to Clear This Code on Vehicles Inspect steering angle sensor; wiring; clear via ISTA. Related Manufacturer Specific Codes BMW U2300; BMW U2301 Previous Next

Toyota P0430 Code – Catalyst Efficiency Below Threshold Bank 2 Yes Safe to drive : Toyota vehicles only Applies only to : Not applicable to : This explanation does NOT apply to other manufacturers. Medium Severity level : When Does This Code Appear on the Vehicles Toyota P0430 affects Bank 2 emissions efficiency. What This Code means on the Vehicles On Toyota vehicles, P0430 indicates catalyst efficiency below threshold on Bank 2. Why This is different from a generic OBD2 Code Toyota exhaust design makes leaks and sensor aging common triggers. Common Situations That Trigger This Code Exhaust leaks; O2 sensor degradation. What Will NOT Fix This Code Replacing catalytic converter prematurely. How to Clear This Code on Vehicles Inspect exhaust system, confirm sensor operation, then replace catalyst if necessary. Related Manufacturer Specific Codes Toyota P0420 Previous Next

Ford P0171 Code – System Too Lean Bank 1 Limited Safe to drive : Ford vehicles only Applies only to : Not applicable to : This explanation does NOT apply to Toyota, BMW, GM, VW, or other manufacturers. Medium Severity level : When Does This Code Appear on the Vehicles Ford P0171 appears when the engine runs lean and may cause hesitation, rough idle, or loss of power. What This Code means on the Vehicles On Ford vehicles, P0171 indicates the PCM has reached the limit of fuel correction on Bank 1 while attempting to compensate for a lean condition. Why This is different from a generic OBD2 Code Ford engines are highly sensitive to unmetered air, making vacuum leaks and MAF errors more common causes than fuel pump failure. Common Situations That Trigger This Code Vacuum leaks; Cracked PCV hoses; Dirty MAF sensor; Intake manifold leaks. What Will NOT Fix This Code Replacing oxygen sensors alone; Replacing fuel injectors without diagnosis. How to Clear This Code on Vehicles Locate vacuum leaks, clean the MAF sensor, verify fuel trims, then clear the code. Related Manufacturer Specific Codes Ford P0174; Ford P2195 Previous Next

Toyota C1242 Code – ABS Front Right Wheel Sensor Fault Limited Safe to drive : Toyota vehicles only Applies only to : Not applicable to : This explanation does NOT apply to other brands. Medium Severity level : When Does This Code Appear on the Vehicles C1242 occurs when ABS module detects front right wheel sensor malfunction. What This Code means on the Vehicles Toyota-specific ABS warning for front right wheel speed sensor. Why This is different from a generic OBD2 Code Generic scanners cannot pinpoint wheel-specific ABS faults for Toyota. Common Situations That Trigger This Code Sensor damage; Wiring issue; Connector corrosion. What Will NOT Fix This Code Ignoring ABS warning; Replacing unrelated parts. How to Clear This Code on Vehicles Inspect sensor and wiring; clear code using Techstream. Related Manufacturer Specific Codes Toyota C1241; Toyota C1243 Previous Next

Toyota U1402 Code – CAN Bus Timeout Limited Safe to drive : Toyota vehicles only Applies only to : Not applicable to : This explanation does NOT apply to other brands. Medium Severity level : When Does This Code Appear on the Vehicles Toyota U1402 occurs when CAN bus modules timeout on communication. What This Code means on the Vehicles Timeout between body control module and other modules, Toyota-specific. Why This is different from a generic OBD2 Code Generic OBD-II scanners cannot detect OEM module timeouts. Common Situations That Trigger This Code Wiring harness damage; BCM failure; Network congestion. What Will NOT Fix This Code Ignoring timeout; Replacing unrelated modules. How to Clear This Code on Vehicles Inspect wiring and BCM; clear via Techstream. Related Manufacturer Specific Codes Toyota U1400; Toyota U1401 Previous Next

BMW P2401 Code – EVAP Large Leak Detected Limited Safe to drive : BMW vehicles only Applies only to : Not applicable to : This explanation does NOT apply to other brands. Medium Severity level : When Does This Code Appear on the Vehicles P2401 occurs when EVAP system detects large leak in vapor lines. What This Code means on the Vehicles BMW-specific EVAP large leak detected. Why This is different from a generic OBD2 Code Generic scanners report EVAP leak but cannot differentiate leak size for BMW. Common Situations That Trigger This Code Loose gas cap; Hose disconnected; Canister cracked. What Will NOT Fix This Code Replacing unrelated parts; Ignoring canister and hose connections. How to Clear This Code on Vehicles Inspect hoses and canister; perform BMW-specific leak test; clear via ISTA. Related Manufacturer Specific Codes BMW P2400; BMW P2402 Previous Next