Symptom Diagnosis ............................................................................................................................ 218 Symptom Diagnosis....................................................................................................................... 218 Chart A-1 ABS Works Frequently But Vehicle Does not Decelerate ............................................. 218 Chart TA-1 ABS Works Frequently But Vehicle Does not Decelerate (Use Tech 2) ..................... 219 Chart A-2 Uneven Braking Occurs While ABS Works ...................................................................
219 Chart TA-2 Uneven Braking Occurs While ABS Works (Use Tech 2) ........................................... 220 Chart A-3, TA-3 The Wheels Are Locked ...................................................................................... 220 Chart A-4, TA-4 Braking Sound (From Hydraulic Unit) Is Heard While Not Braking...................... 221 Diagnostic Trouble Codes................................................................................................................... 222 Diagnostic Trouble Codes..............................................................................................................
222 Diagnosis By “ABS” Warning Light Illumination Pattern ..................................................................... 223 Diagnosis By “ABS” Warning Light Illumination Pattern ................................................................ 223 Diagnostic Trouble Codes (DTCs)................................................................................................. 224 Chart B-1-1 With The Key In The ON Position (Before Starting The Engine) Warning Light (W/l) Is not Activated..............................................................................................
227 Chart 1 (DTC13/C0213) Vehicle Type Error ................................................................................. 228 Chart 2 (DTC14/C0214) EHCU Abnormality ................................................................................. 228 Chart 3 (DTC15/C0215) EHCU Voltage Out of Range ................................................................. 229 Chart 4 (DTC25/C0225) Exhaust Brake Cut Circuit Abnormality................................................... 230 Chart 5 (DTC33/C0233) Motor Drive Circuit Abnormality..............................................................
230 Chart 6 (DTC 34/C0234) Abnormal Motor Rotation....................................................................... 230 Chart 7 (DTC41/C0241) Solenoid Valve Power Supply Abnormality............................................. 231 Chart 8 (DTC 43, 45/C0243, C0245) Solenoid Valve Circuit Abnormality..................................... 231 Chart 9 (DTC51/C0251) FL Speed Sensor Circuit Abnormality..................................................... 231 Chart 10 (DTC52/C0252) FR Speed Sensor Circuit Abnormality.................................................. 231 Chart 11 (DTC53/C0253) RL Speed Sensor Circuit Abnormality ..................................................
232 Chart 12 (DTC54/C0254) RR Speed Sensor Circuit Abnormality.................................................. 233 Chart 13 (DTC61/C0261) Abnormal FL Speed Sensor Signal ...................................................... 234 Chart 14 (DTC62/C0262) Abnormal FR Speed Sensor Signal...................................................... 235 Chart 15 (DTC63/C0263) Abnormal RL Speed Sensor Signal...................................................... 237 Chart 16 (DTC64/C0264) Abnormal RR Speed Sensor Signal .....................................................
238 Unit Inspection Procedure................................................................................................................... 240 Unit Inspection Procedure.............................................................................................................. 240 Chart C-1-1 FL Speed Sensor Output Inspection Procedure ........................................................ 240 Chart C-1-2 FR Speed Sensor Output Inspection Procedure........................................................ 241 Chart C-1-3 RL Speed Sensor Output Inspection Procedure........................................................
241 Chart C-1-4 RR Speed Sensor Output Inspection Procedure ....................................................... 243 Chart TC-1 Sensor Output Inspection Procedure (Use Tech 2) .................................................... 244 On-vehicle Service.............................................................................................................................. 245 Electronic Hydraulic Control Unit (EHCU)...................................................................................... 245 Front Speed Sensor.......................................................................................................................
248 Front Speed Sensor Rotor............................................................................................................. 249 Rear Speed Sensor ....................................................................................................................... 251 Rear Speed Sensor Rotor.............................................................................................................. 253 PARKING BRAKES .................................................................................................................................
255 General Description ............................................................................................................................ 255 Parking Brake Assembly, Parking Brake Lever .................................................................................. 256 Unit Repair [178 mm, 190 mm TYPE]................................................................................................. 261 Unit Repair [203 mm TYPE]................................................................................................................
264 EXHAUST BRAKE................................................................................................................................... 267 General Description ............................................................................................................................ 267 On-vehicle Service.............................................................................................................................. 268 Unit Repair..........................................................................................................................................
270 ABS/ASR ABS/ASR.................................................................................................................................................. 279 ABS/ASR System ............................................................................................................................... 279 Description of Function and Operation .......................................................................................... 279 Parts Location................................................................................................................................
287 Circuit Diagram .............................................................................................................................. 289 Connector List................................................................................................................................ 290