TIGOR EV SERVICE MANUAL

STEERING_BOSCH CONTENTS 1. GENERAL INFORMATION .......................................................................................................................... 1 1.1. SPECIFICATIONS ................................................................................................................................. 1 1.2. SYSTEM LAYOUT................................................................................................................................. 1 1.3. GENERAL DISCRIPTION...................................................................................................................... 2 1.4. TIGHTENING TORQUES ...................................................................................................................... 3 1.5. SPECIAL TOOLS................................................................................................................................... 5 2. MAINTENANCE, INSPECTION AND TEST ................................................................................................ 6 2.1. PRELIMINARY INSPECTION................................................................................................................ 6 2.2. REGULAR MAINTENANCE .................................................................................................................. 7 2.3. ON VEHICLE REPAIRS ........................................................................................................................ 8 2.3.1. STEERING WHEEL REMOVAL ................................................................................................... 8 2.3.2. STEERING COLUMN REMOVAL ................................................................................................ 9 2.3.3. INTERMEDIATE SHAFT REMOVAL ......................................................................................... 11 2.3.4. ECU REMOVAL.......................................................................................................................... 11 2.3.5. RACK & PINION ASSEMBLY REMOVAL.................................................................................. 13 3. OVERHAULING.......................................................................................................................................... 15 3.1. OVERHAULING OF STEERING RACK & PINION ASSEMBLY......................................................... 15 3.2. PRECAUTIONS ................................................................................................................................... 16 3.3. DISMANTLING, INSPECTION & ASSEMBLY .................................................................................... 16 3.3.1. DISASSEMBLY OF RACK & PINOIN ........................................................................................ 16 3.3.2. INSPECTION OF DISMANTLED PARTS .................................................................................. 17 3.3.3. ASSEMBLY OF RACK & PINOIN .............................................................................................. 17 3.3.4. OBJ ON VEHICLE REMOVAL ................................................................................................... 18 3.3.5. DO'S & DON’T'S......................................................................................................................... 18 3.3.6. WHEEL ALIGNMENT ................................................................................................................. 19 4. TROUBLESHOOTING AND DIAGNOSIS ................................................................................................. 22 5. STEERING ANGLE CALIBRATION AND INITIALIZATION PROCESS .................................................. 26 6. EPAS ECU REPLACEMENT AND SOFTWARE UPDATE PROCEDURE IN FIELD............................... 28