Search

CHEPQ - Your Professional OBD2 Hardware & OEM/ODM Partner. We specialize in diagnostic tools, TPMS, battery testers, and custom telematics solutions for fleets, workshops, and brands worldwide. From OBD2 Data to Business Intelligence We handle the complex engineering and reliable manufacturing of custom OBD2 devices, so you can focus on your core business. Contact Our Solutions Manager For immediate and direct communication regarding OEM/ODM projects, please feel free to contact our dedicated manager. We are here to answer your technical and commercial questions. Name: Tommy Wong Position: Global Sales Manager WhatsApp: https://wa.me/85246933011 E-mail: service@chepq.com Submit Your Project Details First name* Last name* Company name* Email* WhatsApp* Project description Submit for Review Product Manual TPMS & SENSOR SERVICE Complete TPMS Solutions for Safety and Compliance. Learn About TPMS Tools > Professional Diagnostic Tools Comprehensive OBD2 Scanners for Every Professional Need. Explore Diagnostic Tools ELECTRICAL & BATTERY TESTERS Precision Tools for Electrical System and Battery Health. View Battery & Electrical Tools > CABLES & ACCESSORIES& EMERGENCY STARTER Durable Adapters, Cables, and Emergency Starters for Seamless Connectivity. Browse Emergency Starter > Browse Cables & Accessories > OBD2 Scanner Professional OBD2 scanners for diagnostics, maintenance resets, and real-time vehicle data. B25 Bluetooth OBD2 Scanner Adapter for iOS and Android YM529 Bluetooth OBD2 Diagnostic Scanner with 2.8-Inch IPS Screen for Gasoline YM509 OBD2 Diagnostic Scanner for 12V Gasoline Vehicles YM519 OBD2 Diagnostic Scanner with 2.8-Inch Color Screen YM319 OBD2 Diagnostic Scanner with 2.4-Inch IPS Color Screen YM119 OBD2 Diagnostic Scanner – Live Data, Mode 6 & Battery Health Check | CHEPQ B18-K WiFi OBD2 Scanner – Classic Dual-Board OBD II Diagnostic Adapter | CHEPQ B18 WiFi OBD2 Scanner – Wireless OBD II Diagnostic Adapter with Full Protocol B12 WiFi OBD2 Scanner – Wireless OBD II Diagnostic Adapter with Full Protocol B08 Bluetooth OBD2 Scanner – Full Protocol Wireless OBD II Diagnostic Tool 1 2 3 ... 6 All Products OEM & ODM Services We specialize in end-to-end OBD2 device manufacturing, offering flexible collaboration models to bring your unique telematics vision to market. OEM Manufacturing Leverage your own designs and specifications. We provide precise, high-quality OBD2 manufacturing and assembly services, ensuring your product is built to your exact standards and branding requirements. ODM Solutions From concept and design to engineering and production, we offer a complete, turnkey solution. Ideal for launching a market-ready product under your brand with minimal upfront investment. White-Label Products Get to market fast with our existing, proven OBD2 models. We will customize the firmware and housing with your logo and branding for a quick and cost-effective launch. 1.Define We begin by deeply understanding your specific needs, target market, and technical specifications to ensure we are perfectly aligned. 2.Quotation You will receive a detailed project proposal with technical solutions, a clear timeline, and a competitive, transparent price. 3. Prototype Our engineering team develops a functional sample for your evaluation and testing, providing a tangible product to validate. 4.Production Upon your approval, we initiate scaled manufacturing in our facilities, ensuring consistency and efficiency. 5.Quality Every unit undergoes strict quality checks and performance testing to meet the agreed-upon standards before shipment. 6. Logistics We ensure secure packaging and manage reliable global shipping to get your products to you safely and on time. CHEPQ's Blog 1 2 3 4 5 Quality & Reliability “We have a large number of OBD2 international certifications, which is enough to make the quality of our products worthy of every customer's trust.” Tommy Wong, Global Sales Manager “We have a strong supply chain, no matter what your customization needs are, we can meet them.” Felix Lee, Product Manager “A supplier of diagnostic tools for over 10,000 types of car keys, such as General Motors (GM), Gc, Ford, chrysler,Dodge,Jeep,Acura,Daewoo, Daihatsy, Honda, Hvundai. Mercedes-Benz, Sprinter, BMw, Nissan, Dacia, Ford. Jaguar, Lamborghini. and more..” Jack Chen, Global Production Manager Exhibition Invitation To play, press and hold the enter key. To stop, release the enter key. Empowering Businesses with Smarter Vehicle Data Solutions At Chepq, we bridge the gap between complex vehicle data and actionable business intelligence. We specialize in providing robust OBD2 telematics hardware and powerful software solutions designed for the unique needs of fleet management companies, automotive insurers, and smart mobility innovators. Read More

Ford P1131 Code – Lack of HO2S Switch Lean 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 P1131 appears when the PCM cannot achieve a rich condition during fuel control testing. What This Code means on the Vehicles On Ford vehicles, P1131 indicates the upstream oxygen sensor on Bank 1 remains lean during closed-loop operation. Why This is different from a generic OBD2 Code Ford uses this code to reflect fuel control response, not direct sensor failure. Common Situations That Trigger This Code Vacuum leaks; Exhaust leaks before sensor; Fuel delivery issues. What Will NOT Fix This Code Replacing catalytic converter; Clearing code without fixing lean condition. How to Clear This Code on Vehicles Diagnose unmetered air, exhaust leaks, and fuel delivery before replacing sensors. Related Manufacturer Specific Codes Ford P1151; Ford P0171 Previous Next

BMW P2400 Code – EVAP Small 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 P2400 occurs when EVAP system detects leak in vapor lines. What This Code means on the Vehicles BMW-specific EVAP small leak detected by engine control module. Why This is different from a generic OBD2 Code Generic scanners report EVAP leak but not BMW-specific thresholds. Common Situations That Trigger This Code Loose gas cap; Cracked hose; Charcoal canister issue. What Will NOT Fix This Code Replacing unrelated parts; Ignoring EVAP hoses. How to Clear This Code on Vehicles Inspect hoses and canister; perform BMW-specific leak test; clear via ISTA. Related Manufacturer Specific Codes BMW P2401; BMW P2402 Previous Next

Ford P1151 Code – Lack of HO2S Switch 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 P1151 affects Bank 2 fuel control and is commonly paired with P1131. What This Code means on the Vehicles On Ford vehicles, P1151 indicates the upstream oxygen sensor on Bank 2 fails to indicate rich. Why This is different from a generic OBD2 Code Ford PCM logic uses this code to monitor fuel control effectiveness. Common Situations That Trigger This Code Intake leaks; Exhaust leaks; Low fuel pressure. What Will NOT Fix This Code Replacing PCM; Replacing downstream oxygen sensors. How to Clear This Code on Vehicles Correct lean conditions, verify fuel pressure, clear code. Related Manufacturer Specific Codes Ford P1131; Ford P0174 Previous Next

Ford P0401 Code – Insufficient EGR Flow 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 P0401 appears when EGR flow is insufficient and may cause knocking or rough idle. What This Code means on the Vehicles On Ford vehicles, P0401 indicates insufficient exhaust gas recirculation flow. Why This is different from a generic OBD2 Code Ford EGR systems commonly clog with carbon, triggering this code. Common Situations That Trigger This Code Carbon buildup; Faulty DPFE sensor; Stuck EGR valve. What Will NOT Fix This Code Replacing catalytic converter; Clearing code without cleaning passages. How to Clear This Code on Vehicles Clean EGR passages, test DPFE sensor, clear code. Related Manufacturer Specific Codes Ford P0402; Ford P1400 Previous Next

Toyota P0171 Code – System Too Lean Bank 1 Limited Safe to drive : Toyota vehicles only Applies only to : Not applicable to : This explanation does NOT apply to Ford, BMW, GM, VW, or other manufacturers. Medium Severity level : When Does This Code Appear on the Vehicles Toyota P0171 appears when the engine runs lean and fuel economy drops. What This Code means on the Vehicles On Toyota vehicles, P0171 indicates Bank 1 is operating with insufficient fuel correction. Why This is different from a generic OBD2 Code Toyota engines commonly trigger this due to intake air leaks rather than fuel pump failure. Common Situations That Trigger This Code Cracked intake hose; Vacuum leaks; Dirty MAF sensor. What Will NOT Fix This Code Replacing oxygen sensors unnecessarily; Replacing catalytic converter. How to Clear This Code on Vehicles Repair intake leaks, clean MAF sensor, verify fuel trims. Related Manufacturer Specific Codes Toyota P0174; Toyota P0100 Previous Next

GM U1200 Code – Sensor Data Lost 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 U1200 appears when BCM detects loss of sensor data on Class 2 network. What This Code means on the Vehicles Sensor data missing or corrupted, reported to gateway module. Why This is different from a generic OBD2 Code Generic OBD-II cannot identify sensor-specific Class 2 communication issues. Common Situations That Trigger This Code Faulty sensor; Wiring damage; BCM software error. What Will NOT Fix This Code Replacing unrelated components. How to Clear This Code on Vehicles Diagnose sensor and BCM; clear code using OEM/Tech2. Related Manufacturer Specific Codes GM U1201; GM U1202 Previous Next

VW U1400 Code – ABS/ESP Communication Fault No Safe to drive : VW vehicles only Applies only to : Not applicable to : This explanation does NOT apply to Audi, BMW, Ford, Toyota, or others. High Severity level : When Does This Code Appear on the Vehicles VW U1400 appears with ABS/ESP module communication errors. What This Code means on the Vehicles Indicates CAN bus fault between gateway and ABS/ESP modules. Why This is different from a generic OBD2 Code Standard OBD-II scanners cannot interpret UDS sub-codes. Common Situations That Trigger This Code ABS module failure; Wiring corrosion; Connector issues. What Will NOT Fix This Code Replacing generic sensors; Ignoring communication fault. How to Clear This Code on Vehicles Test wiring and ABS module; clear using OEM or VCDS tool. Related Manufacturer Specific Codes VW U1300; VW U1401 Previous Next

Toyota C1244 Code – ABS Rear 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 C1244 occurs when ABS module detects rear right wheel sensor fault. What This Code means on the Vehicles Toyota-specific ABS warning for rear right wheel speed sensor. Why This is different from a generic OBD2 Code Generic scanners cannot identify wheel-specific ABS faults for Toyota. Common Situations That Trigger This Code Sensor damage; Wiring harness issue; Connector corrosion. What Will NOT Fix This Code Ignoring ABS alert; Replacing unrelated modules. How to Clear This Code on Vehicles Inspect sensor and wiring; clear code via Techstream. Related Manufacturer Specific Codes Toyota C1242; Toyota C1243 Previous Next

Toyota C1237 Code – ABS Rear 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 Toyota C1237 occurs when ABS module detects rear right wheel sensor fault. What This Code means on the Vehicles ABS module reports rear right wheel sensor error specific to Toyota. Why This is different from a generic OBD2 Code Generic scanners cannot map ABS errors to specific wheels for Toyota. Common Situations That Trigger This Code Faulty sensor; Wiring damage; Connector corrosion. What Will NOT Fix This Code Ignoring ABS alerts; Replacing unrelated modules. How to Clear This Code on Vehicles Inspect sensor and wiring; clear code via Techstream. Related Manufacturer Specific Codes Toyota C1235; Toyota C1236 Previous Next

Audi U14D602 Code – Powertrain Module Timeout Limited Safe to drive : Audi vehicles only Applies only to : Not applicable to : This explanation does NOT apply to VW, BMW, or other brands. Medium Severity level : When Does This Code Appear on the Vehicles Audi U14D602 shows when control module times out on CAN bus. What This Code means on the Vehicles Powertrain module timeout error, specific to Audi. Why This is different from a generic OBD2 Code Generic scanners cannot report module-specific timeouts. Common Situations That Trigger This Code ECU firmware mismatch; Wiring issues; Battery low voltage. What Will NOT Fix This Code Ignoring timeout; Replacing unrelated modules. How to Clear This Code on Vehicles Inspect wiring and ECU; clear code using VCDS/OEM. Related Manufacturer Specific Codes Audi U14D600; Audi U14D601 Previous Next