Exeed RX — руководство по ремонту Chery

1 - GENERAL INFORMATION 1.1 HOW TO USE THIS MANUAL 1 How to Use This Manual 1.1 Manual Content This manual describes the repair process of the whole vehicle in 11 major sections such as introduction, general information, maintenance, engine, drive train, suspension and axle, brake, steering, heating and air conditioning system, supplemental restraint system, electrical and body, etc. Each chapter describes one special part of vehicle components. The first page of this manual contains the contents of all chapters. Each specific chapter generally includes the following contents:

Warnings and precautions, general information (system overview, component operation description, fasteners torque list, module pin definition, etc.), diagnosis & test (problem symptoms table, matching and learning, DTC diagnosis procedure, etc.), on-vehicle service (special tool and equipment, inspection and adjustment, removal and installation). (1) This manual includes all necessary procedures for service operations. These procedures can be divided into following three categories: • Diagnosis. • Removal and installation, replacement, disassembly and assembly, inspection and adjustment. • Inspection. Following procedures are omitted from this manual. However, they must be performed:

• Use a transmission tray or lifter to perform operations. • Clean all removed parts. (2) Service procedure Illustrations for service procedures are used to identify components, show the assembling relevance of parts, and explain the visual check for parts. Removal and installation procedures are explained in words. • Perform a visual check. Service procedures include: • Detailed removal and installation instruction • Illustration • Torque specifications • Technical specifications Sometimes, the illustrations of similar models are used. In this case, minor details may be different from actual vehicle. (3) Diagnosis procedure Diagnosis procedures are divided as below:

• Diagnostic Trouble Code (DTC) DTC is an important hint when troubleshooting is difficult to simulate. The malfunction can be diagnosed quickly and accurately by performing specified DTC diagnosis and check. • Problem symptoms table Malfunction locations can be determined quickly by troubleshooting in accordance with symptom type. (4) Specifications This manual categorizes specifications as below: • Torque specifications • Clearance specifications • Capacity specifications 3 M38T+2.0T+740DCT Service Manual

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2 - SQRF4J20C ENGINE 109 M38T+2.0T+740DCT Service Manual DTC DTC Definition Detection Condition Possible Cause Maintenance Advice sensor signal terminal pin corresponding to ECU resistance and other characteristics 4. Sensor signal terminal pin corresponding to ECU is short to ground P023800 Turbocharger/ Supercharger Boost Sensor "A" Circuit High Boost pressure sensor voltage is higher than 4.85 V 1. Sensor signal terminal pin is short to power supply or open 2. Connector looseness or disengagement 3. Short circuit to power supply or open in sensor signal terminal pin corresponding to ECU 1. Connector looseness or poor contact 2.

Sensor signal terminal pin is short to power supply or open 3. Sensor power supply terminal and ground terminal pin are open 4. Offset or damage to sensor resistance and other characteristics 5. Sensor signal terminal pin corresponding to ECU is short to power supply or open, or there is an internal circuit damage P024300 Booster Exhaust Gas Control Circuit Open Drive channel self-diagnosis is malfunctioning 1. Control valve drive circuit is open 2. Connector looseness or disengagement 3. Pin corresponding to ECU is open 1. Connector looseness or poor contact 2. Exhaust gas control valve drive circuit pin is open 3. Exhaust gas control valve power supply terminal is open 4.

Drive pin corresponding to ECU is open, or there is an internal circuit damage P024600 Booster Exhaust Gas Control Circuit Voltage Too High or Too Low Drive channel self-diagnosis is malfunctioning 1. Connector looseness or poor contact 2. Exhaust gas control valve drive circuit pin is short to power supply or ground 3. Short to power supply or ground in drive circuit pin corresponding to ECU terminal 1. Connector looseness or poor contact 2. Exhaust gas control valve drive circuit pin is short to power supply or ground 3.

Short to power supply or ground or internal circuit damage in drive pin corresponding to ECU terminal P029900 Turbocharger Boost Pressure Too Low The actual boost pressure is higher than the target boost pressure minus a certain offset 1. The line between compressor outlet and throttle valve leaks 2. Leakage between turbine and exhaust pipe 3. Waste gate valve or discharge valve is faulty 4. Turbocharger is 1. There is air leakage in line between compressor outlet and throttle 2. There is air leakage in line between turbine and exhaust pipe 3. Exhaust manifold leaks or is blocked 4. Air filter is dirty 5. Exhaust by-pass valve or discharge valve is failed and it is in normally open status 6.

Working parts such as compressor impeller are dirty or damaged 7. Turbocharger is damaged

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2 - SQRF4J20C ENGINE ECU 3 Power Supply Pressure Signa Ground P Temp Signal Intake Temperature Pressure Sensor ES6072001 ■ DTC Confirmation Procedure Confirm that battery voltage is not less than 12 V before performing following procedures. • Turn ENGINE START STOP switch to OFF. • Connect the diagnostic tester (the latest software). • Start engine and warm it up, and then read DTC again. If DTC is detected, malfunction is current. • If DTC is not detected, malfunction is intermittent. Hint: When performing circuit diagnosis and test, always refer to the circuit diagram for specific circuit and component information. (a) Disconnect the negative battery.

(b) Unplug intake pressure sensor connector, check this connector for looseness or poor contact. NG Repair and adjust connector, or replace intake pressure sensor OK 199 M38T+2.0T+740DCT Service Manual 4 A27 1 2 1 Check intake pressure/temperature sensor connector 2 Check intake pressure/temperature sensor power supply and ground terminals

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2 - SQRF4J20C ENGINE ■ Deviation between both paths signal of accelerator pedal out of limit/voltage too high/too low Control Schematic Diagram ECU 2 Power Supply 1 1 Signal 1 3 Ground 1 5 Power Supply 2 6 Signal 2 4 Ground 2 Electronic Accelerator Pedal ■ DTC Confirmation Procedure Confirm that battery voltage is not less than 12 V before performing following procedures. ES6940001 • Turn ENGINE START STOP switch to OFF. • Connect the diagnostic tester (the latest software). • Start engine and warm it up, and then read DTC again. If DTC is detected, malfunction is current. • If DTC is not detected, malfunction is intermittent. Hint:

When performing circuit diagnosis and test, always refer to the circuit diagram for specific circuit and component information. (a) Disconnect the negative battery. (b) Check electronic accelerator pedal connector for looseness or poor contact. M38T+2.0T+740DCT Service Manual 342 DTC P213800 Deviation Between Both Paths Signal of Accelerator Pedal Out of Limit DTC P212300 Accelerator Pedal 1st Path / 2nd Path Signal Voltage High DTC P212800 DTC P212200 Accelerator Pedal 1st Path / 2nd Path Signal Voltage Low DTC P212700 1 Check electronic accelerator pedal connector

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