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BMW P2201 Code – EGR Low 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 P2201 occurs when EGR system sensor detects lower-than-expected flow. What This Code means on the Vehicles BMW-specific low EGR flow detected by module. Why This is different from a generic OBD2 Code Generic scanners cannot determine flow relative to BMW-specific limits. Common Situations That Trigger This Code Partially clogged EGR; Valve stuck; Wiring issue. What Will NOT Fix This Code Replacing unrelated parts; Ignoring valve cleaning. How to Clear This Code on Vehicles Inspect valve and wiring; clean EGR; clear via ISTA. Related Manufacturer Specific Codes BMW P2200; BMW P2202 Previous Next

Toyota P0A91 Code – Hybrid Inverter Coolant Fault Limited Safe to drive : Toyota hybrid 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 P0A91 occurs when inverter detects cooling system fault. What This Code means on the Vehicles Toyota-specific inverter coolant circuit malfunction. Why This is different from a generic OBD2 Code Generic scanners cannot detect Toyota inverter coolant-specific issues. Common Situations That Trigger This Code Pump failure; Blocked coolant line; Sensor fault. What Will NOT Fix This Code Ignoring coolant alert; Replacing unrelated components. How to Clear This Code on Vehicles Inspect coolant system; verify flow; clear code with Techstream. Related Manufacturer Specific Codes Toyota P0A90; Toyota P0A92 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

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

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

BMW P2100 Code – Throttle Actuator Control 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 P2100 appears when throttle actuator control module reports fault. What This Code means on the Vehicles Indicates throttle control module has BMW-specific actuator error. Why This is different from a generic OBD2 Code Generic OBD-II scanners report only “throttle fault” without brand-specific logic. Common Situations That Trigger This Code Wiring harness issues; Actuator calibration error; Module failure. What Will NOT Fix This Code Replacing unrelated sensors; Ignoring actuator calibration. How to Clear This Code on Vehicles Inspect wiring, calibrate actuator, clear via ISTA or OEM tool. Related Manufacturer Specific Codes BMW P2101; BMW P2102 Previous Next

Toyota P0A81 Code – Hybrid Battery Cell Imbalance Limited Safe to drive : Toyota hybrid 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 P0A81 occurs when hybrid battery cell imbalance is detected. What This Code means on the Vehicles Indicates a cell within battery pack is underperforming or failing. Why This is different from a generic OBD2 Code Generic scanners cannot detect individual module imbalance. Common Situations That Trigger This Code Cell aging; Thermal stress; Manufacturing variance. What Will NOT Fix This Code Replacing inverter; Ignoring cell imbalance. How to Clear This Code on Vehicles Measure cell voltages; replace defective cells; clear code with Techstream. Related Manufacturer Specific Codes Toyota P0A80; Toyota P0A82 Previous Next

BMW U2200 Code – DSC Rear Axle 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 BMW U2200 occurs when DSC module reports sensor error on rear axle. What This Code means on the Vehicles BMW-specific DSC rear axle sensor communication fault. Why This is different from a generic OBD2 Code Generic scanners report only sensor fault, not BMW-specific DSC mapping. Common Situations That Trigger This Code Faulty sensor; Wiring damage; Connector corrosion. What Will NOT Fix This Code Ignoring DSC alert; Replacing unrelated modules. How to Clear This Code on Vehicles Inspect rear axle sensor; clear via ISTA. Related Manufacturer Specific Codes BMW U2201; BMW U2202 Previous Next

BMW 2E8E Code – Intelligent Battery Sensor Fault Limited Safe to drive : BMW 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 BMW 2E8E appears with charging or electrical warnings. What This Code means on the Vehicles BMW 2E8E indicates intelligent battery sensor communication fault. Why This is different from a generic OBD2 Code BMW uses an IBS system not present on most vehicles. Common Situations That Trigger This Code Battery replacement without registration; IBS wiring faults. What Will NOT Fix This Code Replacing alternator unnecessarily. How to Clear This Code on Vehicles Register battery and inspect IBS system before clearing code. Related Manufacturer Specific Codes BMW 2E8D Previous Next

BMW P2001 Code – DSC Sensor Signal Drop 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 BMW P2001 occurs when DSC module detects sensor signal drop on one wheel. What This Code means on the Vehicles DSC module reports sensor input inconsistency affecting stability control. Why This is different from a generic OBD2 Code Standard OBD-II scanners cannot indicate DSC stability impact. Common Situations That Trigger This Code Damaged tone ring; Wheel speed sensor misalignment; DSC calibration needed. What Will NOT Fix This Code Replacing unrelated modules; Ignoring DSC alerts. How to Clear This Code on Vehicles Check tone rings and sensors; recalibrate DSC; clear via BMW ISTA. Related Manufacturer Specific Codes BMW P2000; BMW P2002 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