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Ford P0174 Code – System Too Lean Bank 2 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 P0174 usually appears alongside drivability issues and affects Bank 2. What This Code means on the Vehicles On Ford vehicles, P0174 means Bank 2 is running lean beyond PCM correction limits. Why This is different from a generic OBD2 Code Ford intake designs frequently cause unmetered air issues that affect both banks. Common Situations That Trigger This Code Intake gasket leaks; Vacuum hose failure; MAF contamination. What Will NOT Fix This Code Replacing fuel pump unnecessarily; Replacing downstream O2 sensors. How to Clear This Code on Vehicles Repair intake leaks, clean airflow sensors, confirm balanced fuel trims. Related Manufacturer Specific Codes Ford P0171; Ford P2196 Previous Next

BMW U2300 Code – DSC Yaw Rate 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 U2300 occurs when DSC module reports yaw rate sensor fault. What This Code means on the Vehicles BMW-specific DSC yaw rate sensor error. Why This is different from a generic OBD2 Code Generic scanners cannot map yaw rate faults to BMW-specific DSC logic. Common Situations That Trigger This Code Faulty sensor; Wiring issues; Module malfunction. What Will NOT Fix This Code Ignoring DSC alert; Replacing unrelated components. How to Clear This Code on Vehicles Inspect yaw rate sensor; wiring; clear via ISTA. Related Manufacturer Specific Codes BMW U2301; BMW U2302 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

VW U1300 Code – ABS/ESP Module Communication Lost No Safe to drive : VW 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 VW U1300 appears when gateway module loses communication with ABS/ESP modules. What This Code means on the Vehicles U1300 indicates a communication loss with brake system control module (ABS/ESP). Why This is different from a generic OBD2 Code Generic scanners cannot differentiate UDS module communication codes. Common Situations That Trigger This Code Faulty ABS module; Damaged CAN wires; Connector corrosion. What Will NOT Fix This Code Replacing unrelated sensors. How to Clear This Code on Vehicles Inspect ABS module, test CAN bus integrity, clear code via VCDS or OEM tool. Related Manufacturer Specific Codes VW U1301; VW U163F00 Previous Next

Toyota C1236 Code – ABS Rear Left 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 Toyota C1236 occurs when ABS module detects rear left wheel sensor fault. What This Code means on the Vehicles ABS module reports rear left wheel sensor error, Toyota-specific logic. Why This is different from a generic OBD2 Code Standard OBD-II scanners cannot pinpoint Toyota wheel-specific ABS errors. Common Situations That Trigger This Code Sensor damage; Wiring issues; Connector corrosion. What Will NOT Fix This Code Replacing unrelated components; Ignoring ABS warning. How to Clear This Code on Vehicles Inspect sensor and wiring; clear code using Techstream. Related Manufacturer Specific Codes Toyota C1234; Toyota C1235 Previous Next

BMW P2502 Code – Brake Booster Pressure 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 P2502 occurs when brake booster pressure sensor reports fault. What This Code means on the Vehicles BMW-specific brake booster pressure sensor issue. Why This is different from a generic OBD2 Code Generic scanners report brake pressure issues but not BMW-specific booster logic. Common Situations That Trigger This Code Faulty sensor; Vacuum leak; Module miscommunication. What Will NOT Fix This Code Ignoring booster sensor; Replacing unrelated parts. How to Clear This Code on Vehicles Inspect sensor and vacuum lines; clear code via ISTA. Related Manufacturer Specific Codes BMW P2500; BMW P2501 Previous Next

Ford P0316 Code – Misfire Detected on Startup 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 P0316 often appears immediately after startup with rough running. What This Code means on the Vehicles On Ford vehicles, P0316 indicates misfire detected during engine startup. Why This is different from a generic OBD2 Code Ford PCM specifically monitors startup combustion quality. Common Situations That Trigger This Code Weak ignition coils; Fuel delivery delay; Battery voltage drop. What Will NOT Fix This Code Replacing catalytic converter; Ignoring ignition components. How to Clear This Code on Vehicles Inspect ignition system, fuel delivery, battery health. Related Manufacturer Specific Codes Ford P0300; Ford P0301 Previous Next

GM U1210 Code – Network Checksum Error Limited Safe to drive : GM 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 GM U1210 occurs when modules report checksum error over Class 2 bus. What This Code means on the Vehicles Indicates data integrity issue on network, GM-specific. Why This is different from a generic OBD2 Code Generic scanners cannot detect module checksum errors. Common Situations That Trigger This Code Faulty modules; Wiring errors; Software mismatch. What Will NOT Fix This Code Ignoring checksum error; Replacing unrelated modules. How to Clear This Code on Vehicles Verify module integrity; inspect wiring; clear code with Tech2/OEM. Related Manufacturer Specific Codes GM U1211; GM U1212 Previous Next

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

BMW P0174 Code – System Too Lean Bank 2 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 P0174 often appears together with P0171 and indicates lean operation on Bank 2. What This Code means on the Vehicles On BMW vehicles, P0174 indicates Bank 2 fuel mixture exceeds lean correction limits. Why This is different from a generic OBD2 Code BMW intake systems frequently leak downstream of the MAF, affecting both banks. Common Situations That Trigger This Code Intake boot cracks; CCV failure; Vacuum leaks. What Will NOT Fix This Code Replacing injectors without confirming airflow issues. How to Clear This Code on Vehicles Smoke test intake system and repair leaks before clearing code. Related Manufacturer Specific Codes BMW P0171; BMW P1131 Previous Next

VW U1501 Code – Gateway Module Communication Error Limited Safe to drive : VW vehicles only Applies only to : Not applicable to : This explanation does NOT apply to Audi, BMW, or other brands. Medium Severity level : When Does This Code Appear on the Vehicles VW U1501 occurs after voltage fluctuations or module reprogramming. What This Code means on the Vehicles Indicates CAN communication issue in gateway module. Why This is different from a generic OBD2 Code Generic OBD-II cannot report this VW-specific module code. Common Situations That Trigger This Code Power supply issues; ECU software mismatch; Wiring faults. What Will NOT Fix This Code Ignoring code; Replacing non-related modules. How to Clear This Code on Vehicles Inspect wiring and ECU; clear code via VCDS/OEM. Related Manufacturer Specific Codes VW U1500; VW U155F00 Previous Next