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Case 13 — Part 1 Nissan Maxima A34

Lan System 71 illustrations ~3164 words

Case 13

Check IPDM E/R ignition relay circuit continuously sticks "ON". Refer to IPDM E/R IGNITION RELAY CIRCUIT CHECK .

Scheme 213

Scheme 213: Case 13
Scheme 213: Case 13

Scheme 214

Scheme 214: Circuit Check Between Data Link Connector and Driver Seat Control Unit
Scheme 214: Circuit Check Between Data Link Connector and Driver Seat Control Unit
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Disconnect driver seat control unit connector P2 and ECM connector M82. Check the terminals for deformation, disconnection, looseness or damage. OK or NG OK: GO TO 2 . NG: REPAIR OR REPLACE AS NECESSARY.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check continuity between data link connector M22 terminals 6 (L), 14 (P) and driver seat control unit connector P2 terminals 3 (BR), 19 (Y/G). 6 (L) - 3 (BR): Continuity should exist. 14 (P) - 19 (Y/G): Continuity should exist. OK or NG OK: Connect all connectors and diagnose again. Refer to «WORK FLOW»(ref-233663-S24626155042006052600000) . NG: Repair harness.

Scheme 215

Scheme 215: Circuit Check Between Driver Seat Control Unit and ABS Actuator and Electric Unit (Control Unit)
Scheme 215: Circuit Check Between Driver Seat Control Unit and ABS Actuator and Electric Unit (Control Unit)
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Disconnect driver seat control unit connector P2, ABS actuator and electric unit (control unit) connector E125 and ECM connector M82. Check the terminals for deformation, disconnection, looseness or damage. OK or NG OK: GO TO 2 . NG: Repair or replace as necessary.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check continuity between driver seat control unit connector P2 terminals 3 (BR), 19 (Y/G) and ABS actuator and electric unit (control unit) connector E125 terminals 20 (L), 23 (P). 3 (BR) - 20 (L): Continuity should exist. 19 (Y/G) - 23 (P): Continuity should exist. OK or NG OK: Connect all connectors and diagnose again. Refer to «WORK FLOW»(ref-233663-S24626155042006052600000) . NG: Repair harness.

Scheme 216

Scheme 216: ECM Circuit Check
Scheme 216: ECM Circuit Check
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Disconnect ECM connector M82. Check the terminals for deformation, disconnection, looseness or damage. OK or NG OK: GO TO 2 . NG: Repair or replace as necessary.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check resistance between ECM connector M82 terminal 94 (L) and terminal 86 (P). 94 (L) - 86 (P): Approx. 108 - 132 ohm OK or NG OK: Replace ECM. NG: Repair harness between ECM connector M82 and data link connector M22.

Scheme 217

Scheme 217: Display Unit Circuit Check
Scheme 217: Display Unit Circuit Check
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Disconnect display unit connector M93. Check the terminals for deformation, disconnection, looseness or damage. OK or NG OK: GO TO 2 . NG: Repair or replace as necessary.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check resistance between display unit connector M93 terminal 14 (L) and terminal 16 (P). 14 (L) - 16 (P): Approx. 54 - 66 ohm OK or NG OK: Replace display unit. NG: Repair harness between display unit connector M93 and data link connector M22.

Scheme 218

Scheme 218: Data Link Connector Circuit Check
Scheme 218: Data Link Connector Circuit Check
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Check data link connector M22 terminals for deformation, disconnection, looseness or damage. OK or NG OK: GO TO 2 . NG: Repair or replace as necessary.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check resistance between data link connector M22 terminal 6 (L) and terminal 14 (P). 6 (L) - 14 (P): Approx. 54 - 66 ohm OK or NG OK: Diagnose again. Refer to «WORK FLOW»(ref-233663-S24626155042006052600000) . NG: Repair harness between data link connector M22 and BCM connector M18.

Scheme 219

Scheme 219: Unified Meter and A/C Amp. Circuit Check
Scheme 219: Unified Meter and A/C Amp. Circuit Check
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Disconnect unified meter and A/C amp. connector M49. Check the terminals for deformation, disconnection, looseness or damage. OK or NG OK: GO TO 2 NG: Repair or replace as necessary.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check resistance between unified meter and A/C amp. connector M49 terminal 1 (L) and terminal 11 (P). 1 (L) - 11 (P): Approx. 54 - 66 ohm OK or NG OK: Replace unified meter and A/C amp. NG: Repair harness between unified meter and A/C amp. connector M49 and data link connector M22.

Scheme 220

Scheme 220: BCM Circuit Check
Scheme 220: BCM Circuit Check
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Disconnect BCM connector M18. Check the terminals for deformation, disconnection, looseness or damage. OK or NG OK: GO TO 2 . NG: Repair or replace as necessary.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check resistance between BCM connector M18 terminal 39 (L) and terminal 40 (P). 39 (L) - 40 (P): Approx. 54 - 66 ohm OK or NG OK: Replace BCM. NG: Repair harness between BCM connector M18 and data link connector M22.

Scheme 221

Scheme 221: Driver Seat Control Unit Circuit Check
Scheme 221: Driver Seat Control Unit Circuit Check
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Disconnect driver seat control unit connector P2. Check the terminals for deformation, disconnection, looseness or damage. OK or NG OK: GO TO 2 . NG: Repair or replace as necessary.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check resistance between driver seat control unit connector P2 terminal 3 (BR) and terminal 19 (Y/G). 3 (BR) - 19 (Y/G): Approx. 54 - 66 ohm OK or NG OK: Replace driver seat control unit. NG: Repair harness between driver seat control unit connector P2 and data link connector M22.

Scheme 222

Scheme 222: ABS Actuator and Electric Unit (Control Unit) Circuit Check
Scheme 222: ABS Actuator and Electric Unit (Control Unit) Circuit Check
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Disconnect ABS actuator and electric unit (control unit) connector E125. Check the terminals for deformation, disconnection, looseness or damage. OK or NG OK: GO TO 2 . NG: Repair or replace as necessary.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check resistance between ABS actuator and electric unit (control unit) connector E125 terminal 20 (L) and terminal 23 (P). 20 (L) - 23 (P): Approx. 54 - 66 ohm OK or NG OK: Replace ABS actuator and electric unit (control unit). NG: Repair harness between ABS actuator and electric unit (control unit) connector E125 and IPDM E/R connector E121.

Scheme 223

Scheme 223: IPDM E/R Circuit Check
Scheme 223: IPDM E/R Circuit Check
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Disconnect IPDM E/R connector E121. Check the terminals for deformation, disconnection, looseness or damage. OK or NG OK: GO TO 2 . NG: Repair or replace as necessary.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check resistance between IPDM E/R connector E121 terminal 48 (L) and terminal 49 (P). 48 (L) - 49 (P): Approx. 108 - 132 ohm OK or NG OK: Replace IPDM E/R. NG: Repair harness between IPDM E/R connector E121 and ABS actuator and electric unit (control unit) connector E125.

Scheme 224

Scheme 224: CAN Communication Circuit Check
Scheme 224: CAN Communication Circuit Check

Scheme 225

Scheme 225
Scheme 225
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Disconnect the following module and control unit connectors and check terminals for deformation, disconnection, looseness or damage. ECM Display unit Unified meter and A/C amp. BCM (Body control module) Driver seat control unit ABS actuator and electric unit (control unit) IPDM E/R (Intelligent power distribution module engine room) OK or NG OK: GO TO 2 . NG: Repair or replace as necessary.
  2. CHECK HARNESS FOR SHORTED CIRCUITS With all module and control unit connectors disconnected, check continuity between data link connector M22 terminals 6 (L) and 14 (P). 6 (L) - 14 (P): Continuity should not exist. OK or NG OK: GO TO 3 . NG: Repair the harness.
  3. CHECK HARNESS FOR SHORT TO GROUND Check continuity between data link connector M22 terminals 6 (L), 14 (P) and ground. 6 (L) - Ground: Continuity should not exist. 14 (P) - Ground: Continuity should not exist. OK or NG OK: Check ECM and IPDM E/R. Refer to «COMPONENT INSPECTION»(ref-233663-S26254611692006052600000) . NG: Repair the harness.

Check the following. If no malfunction is found, replace the IPDM E/R.

  1. IPDM E/R power supply circuit. Refer to «IPDM E/R POWER/GROUND CIRCUIT INSPECTION»(ref-233661-S20403786482006052600000) .
  2. Ignition power supply circuit. Refer to «IGNITION POWER SUPPLY - IGNITION SW. IN ON AND/OR START»(ref-233661-S21885615982006052600000) .

Scheme 226

Scheme 226: ECM AND IPDM E/R INTERNAL CIRCUIT INSPECTION
Scheme 226: ECM AND IPDM E/R INTERNAL CIRCUIT INSPECTION
  1. Remove ECM and IPDM E/R from vehicle.
  2. Check resistance between ECM terminals 94 and 86. 94 - 86: Approx. 108 - 132 ohm
  3. Check resistance between IPDM E/R terminals 48 and 49. 48 - 49: Approx. 108 - 132 ohm

Note. If "NG" is displayed on "INITIAL DIAG (Initial diagnosis)" or "CAN COMM" for the diagnosed control unit, replace the control unit.

Check harness between data link connector and driver seat control unit. Refer to CIRCUIT CHECK BETWEEN DATA LINK CONNECTOR AND DRIVER SEAT CONTROL UNIT .

Scheme 227

Scheme 227: Case 1
Scheme 227: Case 1

Scheme 228

Scheme 228
Scheme 228

Check harness between driver seat control unit and ABS actuator and electric unit (control unit). Refer to CIRCUIT CHECK BETWEEN DRIVER SEAT CONTROL UNIT AND ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) .

Scheme 229

Scheme 229: Case 2
Scheme 229: Case 2

Scheme 230

Scheme 230
Scheme 230

Check ECM circuit. Refer to ECM CIRCUIT CHECK .

Scheme 231

Scheme 231: Case 3
Scheme 231: Case 3

Scheme 232

Scheme 232
Scheme 232

Check display control unit circuit. Refer to DISPLAY CONTROL UNIT CIRCUIT CHECK .

Scheme 233

Scheme 233: Case 4
Scheme 233: Case 4

Scheme 234

Scheme 234
Scheme 234

Check data link connector circuit. Refer to DATA LINK CONNECTOR CIRCUIT CHECK .

Scheme 235

Scheme 235: Case 5
Scheme 235: Case 5

Scheme 236

Scheme 236
Scheme 236

Check unified meter and A/C amp. circuit. Refer to UNIFIED METER AND A/C AMP. CIRCUIT CHECK .

Scheme 237

Scheme 237: Case 6
Scheme 237: Case 6

Scheme 238

Scheme 238
Scheme 238

Check BCM circuit. Refer to BCM CIRCUIT CHECK .

Scheme 239

Scheme 239: Case 7
Scheme 239: Case 7

Scheme 240

Scheme 240
Scheme 240

Check driver seat control unit circuit. Refer to DRIVER SEAT CONTROL UNIT CIRCUIT CHECK .

Scheme 241

Scheme 241: Case 8
Scheme 241: Case 8

Scheme 242

Scheme 242
Scheme 242

Check ABS actuator and electric unit (control unit) circuit. Refer to ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) CIRCUIT CHECK .

Scheme 243

Scheme 243: Case 9
Scheme 243: Case 9

Scheme 244

Scheme 244
Scheme 244

Check IPDM E/R circuit. Refer to IPDM E/R CIRCUIT CHECK .

Scheme 245

Scheme 245: Case 10
Scheme 245: Case 10

Scheme 246

Scheme 246
Scheme 246

Check CAN communication circuit. Refer to CAN COMMUNICATION CIRCUIT CHECK .

Scheme 247

Scheme 247: Case 11
Scheme 247: Case 11

Check IPDM E/R ignition relay circuit continuously sticks "OFF". Refer to IPDM E/R IGNITION RELAY CIRCUIT CHECK .

Scheme 248

Scheme 248: Case 12
Scheme 248: Case 12

Check IPDM E/R ignition relay circuit continuously sticks "ON". Refer to IPDM E/R IGNITION RELAY CIRCUIT CHECK

Scheme 249

Scheme 249: Case 13
Scheme 249: Case 13

Scheme 250

Scheme 250: Circuit Check Between Data Link Connector and Driver Seat Control Unit
Scheme 250: Circuit Check Between Data Link Connector and Driver Seat Control Unit
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Disconnect driver seat control unit connector P2 and ECM connector M82. Check the terminals for deformation, disconnection, looseness or damage. OK or NG OK: GO TO 2 . NG: Repair or replace as necessary.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check continuity between data link connector M22 terminals 6 (L), 14 (P) and driver seat control unit connector P2 terminals 3 (BR), 19 (Y/G). 6 (L) - 3 (BR): Continuity should exist. 14 (P) - 19 (Y/G): Continuity should exist. OK or NG OK: Connect all connectors and diagnose again. Refer to «WORK FLOW»(ref-233663-S22383124112006052600000) . NG: Repair harness.

Scheme 251

Scheme 251: Circuit Check Between Driver Seat Control Unit and ABS Actuator and Electric Unit (Control Unit)
Scheme 251: Circuit Check Between Driver Seat Control Unit and ABS Actuator and Electric Unit (Control Unit)
  1. Connector Inspection Turn Ignition Switch Off. Disconnect The Negative Battery Terminal. Disconnect Driver Seat Control Unit Connector P2, ABS Actuator And Electric Unit (Control Unit) Connector E125 And ECM Connector M82. Check The Terminals For Deformation, Disconnection, Looseness Or Damage. OK Or NG OK: Go To 2 . NG: Repair Or Replace As Necessary.
  2. Check Harness For Open Circuit Check Continuity Between Driver Seat Control Unit Connector P2 Terminals 3 (Br), 19 (Y/G) And ABS Actuator And Electric Unit (Control Unit) Connector E125 Terminals 20 (L), 23 (P). 3 (Br) - 20 (L): Continuity Should Exist. 19 (Y/G) - 23 (P): Continuity Should Exist. OK Or NG OK: Connect All Connectors And Diagnose Again. Refer To «WORK FLOW»(ref-233663-S22383124112006052600000) . NG: Repair Harness.

Scheme 252

Scheme 252: ECM Circuit Check
Scheme 252: ECM Circuit Check
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Disconnect ECM connector M82. Check the terminals for deformation, disconnection, looseness or damage. OK or NG OK: GO TO 2 . NG: Repair or replace as necessary.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check resistance between ECM connector M82 terminal 94 (L) and terminal 86 (P). 94 (L) - 86 (P): Approx. 108 - 132 ohm OK or NG OK: Replace ECM. NG: Repair harness between ECM connector M82 and data link connector M22.

Scheme 253

Scheme 253: Display Control Unit Circuit Check
Scheme 253: Display Control Unit Circuit Check
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Disconnect display control unit connector M95. Check the terminals for deformation, disconnection, looseness or damage. OK or NG OK: GO TO 2 . NG: Repair or replace as necessary.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check resistance between display control unit connector M95 terminal 25 (L) and terminal 26 (P). 25 (L) - 26 (P): Approx. 54 - 66 ohm OK or NG OK: Replace display control unit. NG: Repair harness between display control unit connector M95 and data link connector M22.

Scheme 254

Scheme 254: Data Link Connector Circuit Check
Scheme 254: Data Link Connector Circuit Check
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Check data link connector M22 terminals for deformation, disconnection, looseness or damage. OK or NG OK: GO TO 2 . NG: Repair or replace as necessary.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check resistance between data link connector M22 terminal 6 (L) and terminal 14 (P). 6 (L) - 14 (P): Approx. 54 - 66 ohm OK or NG OK: Diagnose again. Refer to «WORK FLOW»(ref-233663-S22383124112006052600000) . NG: Repair harness between data link connector M22 and BCM connector M18.

Scheme 255

Scheme 255: Unified Meter and A/C Amp. Circuit Check
Scheme 255: Unified Meter and A/C Amp. Circuit Check
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Disconnect unified meter and A/C amp. connector M49. Check the terminals for deformation, disconnection, looseness or damage. OK or NG OK: GO TO 2 . NG: Repair or replace as necessary.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check resistance between unified meter and A/C amp. connector M49 terminal 1 (L) and terminal 11 (P). 1 (L) - 11 (P): Approx. 54 - 66 ohm OK or NG OK: Replace unified meter and A/C amp. NG: Repair harness between unified meter and A/C amp. connector M49 and data link connector M22.

Scheme 256

Scheme 256: BCM Circuit Check
Scheme 256: BCM Circuit Check
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Disconnect BCM connector M18. Check the terminals for deformation, disconnection, looseness or damage. OK or NG OK: GO TO 2 . NG: Repair or replace as necessary.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check resistance between BCM connector M18 terminal 39 (L) and terminal 40 (P). 39 (L) - 40 (P): Approx. 54 - 66 ohm OK or NG OK: Replace BCM. NG: Repair harness between BCM connector M18 and data link connector M22.

Scheme 257

Scheme 257: Driver Seat Control Unit Circuit Check
Scheme 257: Driver Seat Control Unit Circuit Check
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Disconnect driver seat control unit connector P2. Check the terminals for deformation, disconnection, looseness or damage. OK or NG OK: GO TO 2 . NG: Repair or replace as necessary.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check resistance between driver seat control unit connector P2 terminal 3 (BR) and terminal 19 (Y/G). 3 (BR) - 19 (Y/G): Approx. 54 - 66 ohm OK or NG OK: Replace driver seat control unit. NG: Repair harness between driver seat control unit connector P2 and data link connector M22.

Scheme 258

Scheme 258: ABS Actuator and Electric Unit (Control Unit) Circuit Check
Scheme 258: ABS Actuator and Electric Unit (Control Unit) Circuit Check
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Disconnect ABS actuator and electric unit (control unit) connector E125. Check the terminals for deformation, disconnection, looseness or damage. OK or NG OK: GO TO 2 . NG: Repair or replace as necessary.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check resistance between ABS actuator and electric unit (control unit) connector E125 terminal 20 (L) and terminal 23 (P). 20 (L) - 23 (P): Approx. 54 - 66 ohm OK or NG OK: Replace ABS actuator and electric unit (control unit). NG: Repair harness between ABS actuator and electric unit (control unit) connector E125 and IPDM E/R connector E121.

Scheme 259

Scheme 259: IPDM E/R Circuit Check
Scheme 259: IPDM E/R Circuit Check
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Disconnect IPDM E/R connector E121. Check the terminals for deformation, disconnection, looseness or damage. OK or NG OK: GO TO 2 . NG: Repair or replace as necessary.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check resistance between IPDM E/R connector E121 terminal 48 (L) and terminal 49 (P). 48 (L) - 49 (P): Approx. 108 - 132 ohm OK or NG OK: Replace IPDM E/R. NG: Repair harness between IPDM E/R connector E121 and ABS actuator and electric unit (control unit) connector E125.

Scheme 260

Scheme 260: CAN Communication Circuit Check
Scheme 260: CAN Communication Circuit Check

Scheme 261

Scheme 261
Scheme 261
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Disconnect the following module and control unit connectors and check terminals for deformation, disconnection, looseness or damage. ECM Display control unit Unified meter and A/C amp. BCM (Body control module) Driver seat control unit ABS actuator and electric unit (control unit) IPDM E/R (Intelligent power distribution module engine room) OK or NG OK: GO TO 2 . NG: Repair or replace as necessary.
  2. CHECK HARNESS FOR SHORTED CIRCUITS With all module and control unit connectors disconnected, check continuity between data link connector M22 terminals 6 (L) and 14 (P). 6 (L) - 14 (P): Continuity should not exist. OK or NG OK: GO TO 3 . NG: Repair the harness.
  3. CHECK HARNESS FOR SHORT TO GROUND Check continuity between data link connector M22 terminals 6 (L), 14 (P) and ground. 6 (L) - Ground: Continuity should not exist. 14 (P) - Ground: Continuity should not exist. OK or NG OK: Check ECM and IPDM E/R. Refer to «COMPONENT INSPECTION»(ref-233663-S27995011512006052600000) . NG: Repair the harness.

Check the following. If no malfunction is found, replace the IPDM E/R.

  1. IPDM E/R power supply circuit. Refer to «IPDM E/R POWER/GROUND CIRCUIT INSPECTION»(ref-233661-S20403786482006052600000) .
  2. Ignition power supply circuit. Refer to «IGNITION POWER SUPPLY-IGNITION SW. IN ON AND/OR START»(ref-233661-S21885615982006052600000) .

Scheme 262

Scheme 262: ECM AND IPDM E/R INTERNAL CIRCUIT INSPECTION
Scheme 262: ECM AND IPDM E/R INTERNAL CIRCUIT INSPECTION
  1. Remove ECM and IPDM E/R from vehicle.
  2. Check resistance between ECM terminals 94 and 86. 94 - 86: Approx. 108 - 132 ohm
  3. Check resistance between IPDM E/R terminals 48 and 49. 48 - 49: Approx. 108 - 132 ohm

Note. If "NG" is displayed on "INITIAL DIAG (Initial diagnosis)" or "CAN COMM" for the diagnosed control unit, replace the control unit.

Check harness between data link connector and ABS actuator and electric unit (control unit). Refer to CIRCUIT CHECK BETWEEN DATA LINK CONNECTOR AND ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) .

Scheme 263

Scheme 263: Case 1
Scheme 263: Case 1

Scheme 264

Scheme 264
Scheme 264

Check ECM circuit. Refer to ECM CIRCUIT CHECK .

Scheme 265

Scheme 265: Case 2
Scheme 265: Case 2

Scheme 266

Scheme 266
Scheme 266

Check display unit circuit. Refer to DISPLAY UNIT CIRCUIT CHECK .

Scheme 267

Scheme 267: Case 3
Scheme 267: Case 3

Scheme 268

Scheme 268
Scheme 268

Check data link connector circuit. Refer to DATA LINK CONNECTOR CIRCUIT CHECK .

Scheme 269

Scheme 269: Case 4
Scheme 269: Case 4

Scheme 270

Scheme 270
Scheme 270

Check unified meter and A/C amp. circuit. Refer to UNIFIED METER AND A/C AMP. CIRCUIT CHECK .

Scheme 271

Scheme 271: Case 5
Scheme 271: Case 5

Scheme 272

Scheme 272
Scheme 272

Check BCM circuit. Refer to BCM CIRCUIT CHECK .

Scheme 273

Scheme 273: Case 6
Scheme 273: Case 6

Scheme 274

Scheme 274
Scheme 274

Check ABS actuator and electric unit (control unit) circuit. Refer to ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) CIRCUIT CHECK .

Scheme 275

Scheme 275: Case 7
Scheme 275: Case 7

Scheme 276

Scheme 276
Scheme 276

Check IPDM E/R circuit. Refer to IPDM E/R CIRCUIT CHECK .

Scheme 277

Scheme 277: Case 8
Scheme 277: Case 8

Scheme 278

Scheme 278
Scheme 278

Check CAN communication circuit. Refer to CAN COMMUNICATION CIRCUIT CHECK .

Scheme 279

Scheme 279: Case 9
Scheme 279: Case 9

Check IPDM E/R ignition relay circuit continuously sticks "OFF". Refer to IPDM E/R IGNITION RELAY CIRCUIT CHECK .

Scheme 280

Scheme 280: Case 10
Scheme 280: Case 10

Check IPDM E/R ignition relay circuit continuously sticks "ON". Refer to IPDM E/R IGNITION RELAY CIRCUIT CHECK .

Scheme 281

Scheme 281: Case 11
Scheme 281: Case 11

Scheme 282

Scheme 282: Circuit Check Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit)
Scheme 282: Circuit Check Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit)
  1. CONNECTOR INSPECTION Turn ignition switch OFF. Disconnect the negative battery terminal. Disconnect ABS actuator and electric unit (control unit) connector E125 and ECM connector M82. Check the terminals for deformation, disconnection, looseness or damage. OK or NG OK: GO TO 2 . NG: Repair or replace as necessary.
  2. CHECK HARNESS FOR OPEN CIRCUIT Check continuity between data link connector M22 terminals 6 (L), 14 (P) and ABS actuator and electric unit (control unit) connector E125 terminals 20 (L), 23 (P). 6 (L) - 20 (L): Continuity should exist. 14 (P) - 23 (P): Continuity should exist. OK or NG OK: Connect all connectors and diagnose again. Refer to «WORK FLOW»(ref-233663-S22168208292006052600000) . NG: Repair harness.

Scheme 283

Scheme 283: ECM Circuit Check
Scheme 283: ECM Circuit Check