2.3.1.3.8 Check the brake disc runout and thickness .................................. 110 2.3.1.4 Fault diagnosis and testing ......................................................................... 111 2.3.1.4.1 Inspection and confirmation ............................................................ 111 2.3.1.4.2 Failure Symptom Table .................................................................... 111 2.3.2 Electric power assist and control mechanism ..................................................... 116 2.3.2.1 Specifications ................................................................................................
116 2.3.2.1.1 Material specifications ...................................................................... 116 2.3.2.1.2 Torque specification .......................................................................... 116 2.3.2.2 Description and operation ........................................................................... 116 2.3.2.2.1 System overview ............................................................................... 116 2.3.2.2.2 Component description .................................................................... 116 2.3.2.3 General inspection .......................................................................................
117 2.3.2.4 DTC diagnosis and testing .......................................................................... 117 2.3.2.4.1 Control module terminal list ............................................................. 117 2.3.2.4.2 DTC diagnosis process index ......................................................... 119 2.3.2.5 Removal and installation ............................................................................. 119 2.3.2.5.1 Electronic accelerator pedal assembly .......................................... 119 2.3.2.5.2 Brake pedal assembly ......................................................................
119 2.3.2.5.3IBOOSTER(Electronic brake booster) ............................................ 120 2.3.3 Brake actuator .......................................................................................................... 121 2.3.3.1 Front disc brake ............................................................................................ 121 2.3.3.1.1 Specifications .................................................................................... 121 2.3.3.1.2 Description and operation ................................................................ 121 2.3.3.1.3 Removal and installation ..................................................................
123 2.3.3.2 Rear disc brake (Electronic parking actuator) .......................................... 128 2.3.3.2.1 Specifications .................................................................................... 128 2.3.3.2.2 Description and operation ................................................................ 129 2.3.3.2.3 Removal and installation .................................................................. 130 2.3.4 ESC&brake pipeline assembly .............................................................................. 136 2.3.4.1 Specifications ................................................................................................
136 2.3.4.1.1 Material specifications ...................................................................... 136 2.3.4.1.2 Torque specification .......................................................................... 136 2.3.4.2 Description and operation ........................................................................... 136 2.3.4.2.1System overview ................................................................................ 136 2.3.4.2.2 Component description .................................................................... 137 2.3.4.3 General inspection .......................................................................................
139 2.3.4.3.1 Inspection and confirmation ............................................................ 139 2.3.4.4 Fault diagnosis and testing ......................................................................... 139 2.3.4.4.1 Intermittent fault diagnosis process ................................................ 139 2.3.4.4.2 ABS/ESC warning light off diagnosis process .............................. 142 2.3.4.4.3 ABS warning light keeps on diagnostic process .......................... 142 2.3.4.5 DTC diagnosis and testing ..........................................................................
142 2.3.4.5.1 Control module terminal list ............................................................. 142 2.3.4.5.2 Data stream list ................................................................................. 143 2.3.4.5.3 Action test ........................................................................................... 144 2.3.4.5.4 Special Function ................................................................................ 144 2.3.4.5.5 The diagnosis process of the fault diagnosis instrument being unable to communicate with the vehicle ........................................................
145 2.3.4.5.5 DTC diagnosis process index ......................................................... 146 2.3.4.5.6 Diagnostic process of electronic control unit ................................ 147 2.3.4.5.7 Wheel speed sensor diagnosis process ........................................ 148 2.3.4.6 Removal and installation ............................................................................. 149 2.3.4.6.1 ESC actuator assembly ................................................................... 149 2.3.4.6.2 Front wheel speed sensor assembly ............................................. 151 2.3.4.6.3 Rear wheel speed sensor assembly ..............................................
153 2.3.5 Electronic parking brake system ........................................................................... 154 2.3.5.1 Description and operation ........................................................................... 154 IV