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LIN Communication System (Diagnostic Codes): Other Lexus IS III

Communication Devices 3 illustrations ~6480 words

CAUTION / NOTICE / HINT

Note. If the certification ECU (smart key ECU assembly) is replaced, register the keys. Refer to REGISTRATION [04/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select vehicle type under manual mode and enter the following menus: Body Electrical / Smart Access. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.

PROCEDURE

  1. CLEAR DTC Clear the DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665832-S32731231342014102400000) Body Electrical > Smart Access > Clear DTCs Result Proceed to NEXT Result: 1 NEXT See step 2
  2. CHECK FOR DTC Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665832-S32731231342014102400000) Body Electrical > Smart Access > Trouble Codes OK DTC B278C is not output. Result Proceed to OK NG Result: 1 OK USE SIMULATION METHOD TO CHECK. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665529-S21853141262014102400000) Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [04/2013 - ]»(ref-665834-S32475940332014102400000)

Note. Inspect the fuses for circuits related to this system before performing the following procedure. If the certification ECU (smart key ECU assembly) is replaced, register the keys. Refer to REGISTRATION [04/2013 - ] If the ID code box (immobilizer code ECU) is replaced, register the ECU code and ECU communication ID. Refer to REGISTRATION [04/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select vehicle type under manual mode and enter the following menus: Body Electrical / Smart Access. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.

  1. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - ID CODE BOX (IMMOBILIZER CODE ECU)) Disconnect the K6 certification ECU (smart key ECU assembly) connector. Disconnect the K83 ID code box (immobilizer code ECU) connector. Measure the resistance according to the value(s) in the table below. NOTE: Make sure that each ECU is in sleep mode before performing the inspection. To enter sleep mode, turn the engine switch from on (IG) to off and wait for 180 seconds or more without operating any switches. Standard Resistance Tester Connection Condition Specified Condition K6-6 (LIN) - K83-2 (LIN1) Engine switch off Below 1 ohms K6-6 (LIN) - Body ground Engine switch off 10 kohms or higher K83-2 (LIN1) - Body ground Engine switch off 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 2
  2. CHECK HARNESS AND CONNECTOR (ID CODE BOX (IMMOBILIZER CODE ECU) - BATTERY, BODY GROUND) Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition K83-1 (+B) - K83-5 (GND) Always 11 to 14 V Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K83-5 (GND) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 3
  3. REPLACE ID CODE BOX (IMMOBILIZER CODE ECU) Replace the ID code box (immobilizer code ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665834-S03308317182014102400000) Result Proceed to NEXT Result: 1 NEXT See step 4
  4. REGISTER ECU CODE REGISTRATION Register the recognition codes in the ECUs. HINT: Refer to Registration. Refer to «REGISTRATION [04/2013 - ]»(ref-665555-S15306758692014102400000) Result Proceed to NEXT Result: 1 NEXT See step 5
  5. CHECK DTC OUTPUT Clear the DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665832-S32731231342014102400000) Body Electrical > Smart Access > Clear DTCs Recheck for DTCs. Body Electrical > Smart Access > Trouble Codes OK DTC B2789 is not output. Result Proceed to OK NG Result: 1 OK END (ID CODE BOX (IMMOBILIZER CODE ECU) WAS DEFECTIVE) Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [04/2013 - ]»(ref-665834-S32475940332014102400000)

Note. Inspect the fuses for circuits related to this system before performing the following procedure. If the certification ECU (smart key ECU assembly) is replaced, register the keys. Refer to REGISTRATION [04/2013 - ] If the steering lock ECU (steering lock actuator assembly) is replaced, register the ECU code. Refer to REGISTRATION [04/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select vehicle type under manual mode and enter the following menus: Body Electrical / Smart Access. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.

  1. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY)) Disconnect the K6 certification ECU (smart key ECU assembly) connector. Disconnect the K28 steering lock ECU (steering lock actuator assembly) connector. Measure the resistance according to the value(s) in the table below. NOTE: Make sure that each ECU is in sleep mode before performing the inspection. To enter sleep mode, turn the engine switch from on (IG) to off and wait for 180 seconds or more without operating any switches. Standard Resistance Tester Connection Condition Specified Condition K6-6 (LIN) - K28-5 (LIN) Engine switch off Below 1 ohms K6-6 (LIN) - Body ground Engine switch off 10 kohms or higher K28-5 (LIN) - Body ground Engine switch off 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 2
  2. CHECK HARNESS AND CONNECTOR (STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) - BATTERY, BODY GROUND) Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition K28-7 (B) - K28-1 (GND) Always 11 to 14 V Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K28-1 (GND) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 3
  3. REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) Replace the steering lock ECU (steering lock actuator assembly). Refer to «DISASSEMBLY [04/2013 - ]»(ref-665793-S25030043632014102400000) Result Proceed to NEXT Result: 1 NEXT See step 4
  4. REGISTER ECU CODE REGISTRATION Register the recognition codes in the ECUs. HINT: Refer to Registration. Refer to «REGISTRATION [04/2013 - ]»(ref-665555-S15306758692014102400000) Result Proceed to NEXT Result: 1 NEXT See step 5
  5. CHECK DTC OUTPUT Clear the DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665832-S32731231342014102400000) Body Electrical > Smart Access > Clear DTCs Recheck for DTCs. Body Electrical > Smart Access > Trouble Codes OK DTC B2786 is not output. Result Proceed to OK NG Result: 1 OK END (STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY) WAS DEFECTIVE) Result: 2 NG REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [04/2013 - ]»(ref-665834-S32475940332014102400000)

Note. Inspect the fuses for circuits related to this system before performing the following procedure. If the certification ECU (smart key ECU assembly) is replaced, register the keys. Refer to REGISTRATION [04/2013 - ] If the steering lock ECU (steering lock actuator assembly) is replaced, register the ECU code. Refer to REGISTRATION [04/2013 - ] If the ID code box (immobilizer code ECU) is replaced, register the ECU code and ECU communication ID. Refer to REGISTRATION [04/2013 - ] Before performing the inspection, check that DTC B2786 or B2789 is not output. Refer to DTC CHECK / CLEAR [04/2013 - ] When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select vehicle type under manual mode and enter the following menus: Body Electrical / Smart Access. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.

  1. CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) - EACH ECU) Disconnect the K6 certification ECU (smart key ECU assembly) connector. Disconnect the K28 steering lock ECU (steering lock actuator assembly) connector. Disconnect the K83 ID code box (immobilizer code ECU) connector. Measure the resistance according to the value(s) in the table below. NOTE: Make sure that each ECU is in sleep mode before performing the inspection. To enter sleep mode, turn the engine switch from on (IG) to off and wait for 180 seconds or more without operating any switches. Standard Resistance Tester Connection Condition Specified Condition K6-6 (LIN) - K28-5 (LIN) Engine switch off Below 1 ohms K6-6 (LIN) - K83-2 (LIN1) Engine switch off Below 1 ohms K6-6 (LIN) - Body ground Engine switch off 10 kohms or higher K28-5 (LIN) - Body ground Engine switch off 10 kohms or higher K83-2 (LIN1) - Body ground Engine switch off 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 2
  2. CHECK DTC OUTPUT (STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY)) Reconnect the K6 certification ECU (smart key ECU assembly) connector. Reconnect the K83 ID code box (immobilizer code ECU) connector. Clear the DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665832-S32731231342014102400000) Body Electrical > Smart Access > Clear DTCs Recheck for DTCs. Body Electrical > Smart Access > Trouble Codes Result Result Proceed to DTC B2785 is output A DTC B2785 is not output B Result: 2 B REPLACE STEERING LOCK ECU (STEERING LOCK ACTUATOR ASSEMBLY). Refer to «DISASSEMBLY [04/2013 - ]»(ref-665793-S25030043632014102400000) Result: 1 A See step 3
  3. CHECK DTC OUTPUT (ID CODE BOX (IMMOBILIZER CODE ECU)) Reconnect the K28 steering lock ECU (steering lock actuator assembly) connector. Disconnect the K83 ID code box (immobilizer code ECU) connector. Clear the DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665832-S32731231342014102400000) Body Electrical > Smart Access > Clear DTCs Recheck for DTCs. Body Electrical > Smart Access > Trouble Codes Result Result Proceed to DTC B2785 is output A DTC B2785 is not output B Result: 1 A REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [04/2013 - ]»(ref-665834-S32475940332014102400000) Result: 2 B REPLACE ID CODE BOX (IMMOBILIZER CODE ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665834-S03308317182014102400000)

Note. Inspect the fuses for circuits related to this system before performing the following procedure. When a power window regulator motor assembly is replaced or removed and reinstalled, it requires initialization. When the sliding roof ECU (sliding roof drive gear sub-assembly) is replaced or removed and reinstalled, it requires initialization (w/ Sliding Roof System). Refer to INITIALIZATION [04/2013 - ] Before performing the inspection, check that DTC B1206, B1273, B2321, B2322, B2323 or B2324 is not output. Refer to DTC CHECK / CLEAR [04/2013 - ] If the main body ECU (multiplex network body ECU) is replaced, refer to Registration. Refer to REGISTRATION [04/2013 - ]

  1. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) *a Component without harness connected (Instrument Panel Junction Block Assembly) - - Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly. Measure the resistance according to the value(s) in the table below. HINT: This inspection is to check the LIN communication line in the instrument panel junction block assembly that connects the wire harness to the built-in main body ECU (multiplex network body ECU). Standard Resistance Tester Connection Condition Specified Condition 4B-21 - MB-16 (LIN2) Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 1 OK See step 2
  2. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - EACH ECU) Disconnect the N17 power window regulator motor assembly (for driver door) connector. Disconnect the N2 power window regulator motor assembly (for front passenger door) connector. Disconnect the O7 power window regulator motor assembly (for rear LH door) connector. Disconnect the O2 power window regulator motor assembly (for rear RH door) connector. Disconnect the N27*1 or N18*2 multiplex network master switch assembly connector. *1: w/o Seat Position Memory System *2: w/ Seat Position Memory System Disconnect the S5 sliding roof ECU (sliding roof drive gear sub-assembly) connector.*3 *3: w/ Sliding Roof System Measure the resistance according to the value(s) in the table below. NOTE: Make sure that each ECU is in sleep mode before performing the inspection. To enter sleep mode, turn the engine switch from on (IG) to off and wait for 180 seconds or more without operating any switches. Standard Resistance Tester Connection Condition Specified Condition 4B-21 - N27-7 (LIN1)*1 Engine switch off Below 1 ohms 4B-21 - N18-17 (LIN1)*2 Engine switch off Below 1 ohms 4B-21 - S5-11 (MPX1)*3 Engine switch off Below 1 ohms 4B-21 - N2-9 (LIN) Engine switch off Below 1 ohms 4B-21 - O7-9 (LIN) Engine switch off Below 1 ohms 4B-21 - O2-9 (LIN) Engine switch off Below 1 ohms 4B-21 - N17-9 (LIN) Engine switch off Below 1 ohms N27-7 (LIN1) - Body ground*1 Engine switch off 10 kohms or higher N18-17 (LIN1) - Body ground*2 Engine switch off 10 kohms or higher S5-11 (MPX1) - Body ground*3 Engine switch off 10 kohms or higher 4B-21 - Body ground Engine switch off 10 kohms or higher N2-9 (LIN) - Body ground Engine switch off 10 kohms or higher O7-9 (LIN) - Body ground Engine switch off 10 kohms or higher O2-9 (LIN) - Body ground Engine switch off 10 kohms or higher N17-9 (LIN) - Body ground Engine switch off 10 kohms or higher *1: w/o Seat Position Memory System *2: w/ Seat Position Memory System *3: w/ Sliding Roof System Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 3
  3. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Door) Reconnect the 4B instrument panel junction block assembly connector. Reconnect the N17 power window regulator motor assembly (for driver door) connector. Reconnect the N2 power window regulator motor assembly (for front passenger door) connector. Reconnect the O2 power window regulator motor assembly (for rear RH door) connector. Reconnect the N27*1 or N18*2 multiplex network master switch assembly connector. *1: w/o Seat Position Memory System *2: w/ Seat Position Memory System Reconnect the S5 sliding roof ECU (sliding roof drive gear sub-assembly) connector.*3 *3: w/ Sliding Roof System Clear the DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665832-S32731231342014102400000) Body Electrical > Main Body > Clear DTCs After 10 seconds have elapsed, check if the same DTC is output again. Body Electrical > Main Body > Trouble Codes Result Result Proceed to DTC B2325 is output A DTC B2325 is not output B Result: 2 B REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Door). Refer to «REMOVAL [04/2013 - ]»(ref-665802-S02229477102014102400000) Result: 1 A See step 4
  4. CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Reconnect the O7 power window regulator motor assembly (for rear LH door) connector. Disconnect the N27*1 or N18*2 multiplex network master switch assembly connector. *1: w/o Seat Position Memory System *2: w/ Seat Position Memory System Clear the DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665832-S32731231342014102400000) Body Electrical > Main Body > Clear DTCs After 10 seconds have elapsed, check if the same DTC is output again. Body Electrical > Main Body > Trouble Codes Result Result Proceed to DTC B2325 is output A DTC B2325 is not output B Result: 2 B REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665802-S39186220902014102400000) Result: 1 A See step 5
  5. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear RH Door) Reconnect the N27*1 or N18*2 multiplex network master switch assembly connector. *1: w/o Seat Position Memory System *2: w/ Seat Position Memory System Disconnect the O2 power window regulator motor assembly (for rear RH door) connector. Clear the DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665832-S32731231342014102400000) Body Electrical > Main Body > Clear DTCs After 10 seconds have elapsed, check if the same DTC is output again. Body Electrical > Main Body > Trouble Codes Result Result Proceed to DTC B2325 is output A DTC B2325 is not output B Result: 2 B REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear RH Door). Refer to «REMOVAL [04/2013 - ]»(ref-665802-S02229477102014102400000) Result: 1 A See step 6
  6. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Door) Reconnect the O2 power window regulator motor assembly (for rear RH door) connector. Disconnect the N17 power window regulator motor assembly (for driver door) connector. Clear the DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665832-S32731231342014102400000) Body Electrical > Main Body > Clear DTCs After 10 seconds have elapsed, check if the same DTC is output again. Body Electrical > Main Body > Trouble Codes Result Result Proceed to DTC B2325 is output A DTC B2325 is not output B Result: 2 B REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Door). Refer to «REMOVAL [04/2013 - ]»(ref-665802-S30292592912014102400000) Result: 1 A See step 7
  7. CHECK POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Front Passenger Door) Reconnect the N17 power window regulator motor assembly (for driver door) connector. Disconnect the N2 power window regulator motor assembly (for front passenger door) connector. Clear the DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665832-S32731231342014102400000) Body Electrical > Main Body > Clear DTCs After 10 seconds have elapsed, check if the same DTC is output again. Body Electrical > Main Body > Trouble Codes Result Result Proceed to DTC B2325 is output (w/ Sliding Roof System) A DTC B2325 is output (w/o Sliding Roof System) B DTC B2325 is not output C Result: 3 B REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 4 C REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY RH. Refer to «REMOVAL [04/2013 - ]»(ref-665802-S30292592912014102400000) Result: 1 A See step 8
  8. CHECK SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) Reconnect the N2 power window regulator motor assembly (for front passenger door) connector. Disconnect the S5 sliding roof ECU (sliding roof drive gear sub-assembly) connector. Clear the DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665832-S32731231342014102400000) Body Electrical > Main Body > Clear DTCs After 10 seconds have elapsed, check if the same DTC is output again. Body Electrical > Main Body > Trouble Codes Result Result Proceed to DTC B2325 is output A DTC B2325 is not output B Result: 1 A REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 3 B REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY). Refer to «REMOVAL [04/2013 - ]»(ref-665854-S27843532582014102400000)

Note. Inspect the fuses for circuits related to this system before performing the following procedure. When a power window regulator motor assembly is replaced or removed and reinstalled, it requires initialization. Refer to INITIALIZATION [04/2013 - ] If the main body ECU (multiplex network body ECU) is replaced, refer to Registration. Refer to REGISTRATION [04/2013 - ]

Scheme 122

Scheme 122: PROCEDURE
Scheme 122: PROCEDURE
  1. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) *a Component without harness connected (Instrument Panel Junction Block Assembly) - - Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly. Measure the resistance according to the value(s) in the table below. HINT: This inspection is to check the LIN communication line in the instrument panel junction block assembly that connects the wire harness to the built-in main body ECU (multiplex network body ECU). Standard Resistance Tester Connection Condition Specified Condition 4B-21 - MB-16 (LIN2) Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 1 OK See step 2
  2. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Door)) Disconnect the O7 power window regulator motor assembly (for rear LH door) connector. Measure the resistance according to the value(s) in the table below. NOTE: Make sure that each ECU is in sleep mode before performing the inspection. To enter sleep mode, turn the engine switch from on (IG) to off and wait for 180 seconds or more without operating any switches. Standard Resistance Tester Connection Condition Specified Condition 4B-21 - O7-9 (LIN) Engine switch off Below 1 ohms O7-9 (LIN) - Body ground Engine switch off 10 kohms or higher 4B-21 - Body ground Engine switch off 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Door) - BATTERY, BODY GROUND) Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition O7-2 (B) - O7-1 (GND) Always 11 to 14 V Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition O7-1 (GND) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 4
  4. REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Door) Replace the power window regulator motor assembly (for rear LH door). Refer to «REMOVAL [04/2013 - ]»(ref-665802-S02229477102014102400000) Result Proceed to NEXT Result: 1 NEXT See step 5
  5. CHECK DTC OUTPUT Clear the DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665832-S32731231342014102400000) Body Electrical > Main Body > Clear DTCs Recheck for DTCs. Body Electrical > Main Body > Trouble Codes OK DTC B2324 is not output. Result Proceed to OK NG Result: 1 OK END (POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Door) WAS DEFECTIVE) Result: 2 NG REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000)

Note. Inspect the fuses for circuits related to this system before performing the following procedure. When a power window regulator motor assembly is replaced or removed and reinstalled, it requires initialization. Refer to INITIALIZATION [04/2013 - ] If the main body ECU (multiplex network body ECU) is replaced, refer to Registration. Refer to REGISTRATION [04/2013 - ]

  1. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) *a Component without harness connected (Instrument Panel Junction Block Assembly) - - Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly. Measure the resistance according to the value(s) in the table below. HINT: This inspection is to check the LIN communication line in the instrument panel junction block assembly that connects the wire harness to the built-in main body ECU (multiplex network body ECU). Standard Resistance Tester Connection Condition Specified Condition 4B-21 - MB-16 (LIN2) Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 1 OK See step 2
  2. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear RH Door)) Disconnect the O2 power window regulator motor assembly (for rear RH door) connector. Measure the resistance according to the value(s) in the table below. NOTE: Make sure that each ECU is in sleep mode before performing the inspection. To enter sleep mode, turn the engine switch from on (IG) to off and wait for 180 seconds or more without operating any switches. Standard Resistance Tester Connection Condition Specified Condition 4B-21 - O2-9 (LIN) Engine switch off Below 1 ohms O2-9 (LIN) - Body ground Engine switch off 10 kohms or higher 4B-21 - Body ground Engine switch off 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear RH Door) - BATTERY, BODY GROUND) Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition O2-2 (B) - O2-1 (GND) Always 11 to 14 V Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition O2-1 (GND) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 4
  4. REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear RH Door) Replace the power window regulator motor assembly (for rear RH door). Refer to «REMOVAL [04/2013 - ]»(ref-665802-S02229477102014102400000) Result Proceed to NEXT Result: 1 NEXT See step 5
  5. CHECK DTC OUTPUT Clear the DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665832-S32731231342014102400000) Body Electrical > Main Body > Clear DTCs Recheck for DTCs. Body Electrical > Main Body > Trouble Codes OK DTC B2323 is not output. Result Proceed to OK NG Result: 1 OK END (POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear RH Door) WAS DEFECTIVE) Result: 2 NG REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000)

Note. Inspect the fuses for circuits related to this system before performing the following procedure. When a power window regulator motor assembly is replaced or removed and reinstalled, it requires initialization. Refer to INITIALIZATION [04/2013 - ] If the main body ECU (multiplex network body ECU) is replaced, refer to Registration. Refer to REGISTRATION [04/2013 - ]

  1. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) *a Component without harness connected (Instrument Panel Junction Block Assembly) - - Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly. Measure the resistance according to the value(s) in the table below. HINT: This inspection is to check the LIN communication line in the instrument panel junction block assembly that connects the wire harness to the built-in main body ECU (multiplex network body ECU). Standard Resistance Tester Connection Condition Specified Condition 4B-21 - MB-16 (LIN2) Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 1 OK See step 2
  2. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Front Passenger Door)) Disconnect the N2 power window regulator motor assembly (for front passenger door) connector. Measure the resistance according to the value(s) in the table below. NOTE: Make sure that each ECU is in sleep mode before performing the inspection. To enter sleep mode, turn the engine switch from on (IG) to off and wait for 180 seconds or more without operating any switches. Standard Resistance Tester Connection Condition Specified Condition 4B-21 - N2-9 (LIN) Engine switch off Below 1 ohms N2-9 (LIN) - Body ground Engine switch off 10 kohms or higher 4B-21 - Body ground Engine switch off 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Front Passenger Door) - BATTERY, BODY GROUND) Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition N2-2 (B) - N2-1 (GND) Always 11 to 14 V Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition N2-1 (GND) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 4
  4. REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Front Passenger Door) Replace the power window regulator motor assembly (for front passenger door). Refer to «REMOVAL [04/2013 - ]»(ref-665802-S30292592912014102400000) Result Proceed to NEXT Result: 1 NEXT See step 5
  5. CHECK DTC OUTPUT Clear the DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665832-S32731231342014102400000) Body Electrical > Main Body > Clear DTCs Recheck for DTCs. Body Electrical > Main Body > Trouble Codes OK DTC B2322 is not output. Result Proceed to OK NG Result: 1 OK END (POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Front Passenger Door) WAS DEFECTIVE) Result: 2 NG REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000)

Note. Inspect the fuses for circuits related to this system before performing the following procedure. When a power window regulator motor assembly is replaced or removed and reinstalled, it requires initialization. Refer to INITIALIZATION [04/2013 - ] If the main body ECU (multiplex network body ECU) is replaced, refer to Registration. Refer to REGISTRATION [04/2013 - ]

Scheme 123

Scheme 123: PROCEDURE
Scheme 123: PROCEDURE
  1. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) *a Component without harness connected (Instrument Panel Junction Block Assembly) - - Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly. Measure the resistance according to the value(s) in the table below. HINT: This inspection is to check the LIN communication line in the instrument panel junction block assembly that connects the wire harness to the built-in main body ECU (multiplex network body ECU). Standard Resistance Tester Connection Condition Specified Condition 4B-21 - MB-16 (LIN2) Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 1 OK See step 2
  2. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Door)) Disconnect the N17 power window regulator motor assembly (for driver door) connector. Measure the resistance according to the value(s) in the table below. NOTE: Make sure that each ECU is in sleep mode before performing the inspection. To enter sleep mode, turn the engine switch from on (IG) to off and wait for 180 seconds or more without operating any switches. Standard Resistance Tester Connection Condition Specified Condition 4B-21 - N17-9 (LIN) Engine switch off Below 1 ohms N17-9 (LIN) - Body ground Engine switch off 10 kohms or higher 4B-21 - Body ground Engine switch off 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Door) - BATTERY, BODY GROUND) Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition N17-2 (B) - N17-1 (GND) Always 11 to 14 V Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition N17-1 (GND) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 4
  4. REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Door) Replace the power window regulator motor assembly (for driver door). Refer to «REMOVAL [04/2013 - ]»(ref-665802-S30292592912014102400000) Result Proceed to NEXT Result: 1 NEXT See step 5
  5. CHECK DTC OUTPUT Clear the DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665832-S32731231342014102400000) Body Electrical > Main Body > Clear DTCs Recheck for DTCs. Body Electrical > Main Body > Trouble Codes OK DTC B2321 is not output. Result Proceed to OK NG Result: 1 OK END (POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Door) WAS DEFECTIVE) Result: 2 NG REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000)

Note. Inspect the fuses for circuits related to this system before performing the following procedure. If the main body ECU (multiplex network body ECU) is replaced, refer to Registration. Refer to REGISTRATION [04/2013 - ]

Scheme 124

Scheme 124: PROCEDURE
Scheme 124: PROCEDURE
  1. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) *a Component without harness connected (Instrument Panel Junction Block Assembly) - - Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly. Measure the resistance according to the value(s) in the table below. HINT: This inspection is to check the LIN communication line in the instrument panel junction block assembly that connects the wire harness to the built-in main body ECU (multiplex network body ECU). Standard Resistance Tester Connection Condition Specified Condition 4B-21 - MB-16 (LIN2) Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 1 OK See step 2
  2. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY) Disconnect the N27*1 or N18*2 multiplex network master switch assembly connector. *1: w/o Seat Position Memory System *2: w/ Seat Position Memory System Measure the resistance according to the value(s) in the table below. NOTE: Make sure that each ECU is in sleep mode before performing the inspection. To enter sleep mode, turn the engine switch from on (IG) to off and wait for 180 seconds or more without operating any switches. Standard Resistance Tester Connection Condition Specified Condition 4B-21 - N27-7 (LIN1)*1 Engine switch off Below 1 ohms 4B-21 - N18-17 (LIN1)*2 Engine switch off Below 1 ohms N27-7 (LIN1) - Body ground*1 Engine switch off 10 kohms or higher N18-17 (LIN1) - Body ground*2 Engine switch off 10 kohms or higher 4B-21 - Body ground Engine switch off 10 kohms or higher *1: w/o Seat Position Memory System *2: w/ Seat Position Memory System Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY - BATTERY, BODY GROUND) Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition N27-21 (B) - N27-17 (GND)*1 Always 11 to 14 V N18-11 (B) - N18-12 (GND)*2 Always 11 to 14 V *1: w/o Seat Position Memory System *2: w/ Seat Position Memory System Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition N27-17 (GND) - Body ground*1 Always Below 1 ohms N18-12 (GND) - Body ground*2 Always Below 1 ohms *1: w/o Seat Position Memory System *2: w/ Seat Position Memory System Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 4
  4. REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Replace the multiplex network master switch assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665802-S39186220902014102400000) Result Proceed to NEXT Result: 1 NEXT See step 5
  5. CHECK DTC OUTPUT Clear the DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665832-S32731231342014102400000) Body Electrical > Main Body > Clear DTCs Recheck for DTCs. Body Electrical > Main Body > Trouble Codes OK DTC B1206 is not output. Result Proceed to OK NG Result: 1 OK END (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WAS DEFECTIVE) Result: 2 NG REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000)

Note. Inspect the fuses for circuits related to this system before performing the following procedure. If the main body ECU (multiplex network body ECU) is replaced, refer to Registration. Refer to REGISTRATION [04/2013 - ] When the sliding roof ECU (sliding roof drive gear sub-assembly) is replaced or removed and reinstalled, it requires initialization. Refer to INITIALIZATION [04/2013 - ]

  1. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) *a Component without harness connected (Instrument Panel Junction Block Assembly) - - Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly. Measure the resistance according to the value(s) in the table below. HINT: This inspection is to check the LIN communication line in the instrument panel junction block assembly that connects the wire harness to the built-in main body ECU (multiplex network body ECU). Standard Resistance Tester Connection Condition Specified Condition 4B-21 - MB-16 (LIN2) Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 1 OK See step 2
  2. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY)) Disconnect the S5 sliding roof ECU (sliding roof drive gear sub-assembly) connector. Measure the resistance according to the value(s) in the table below. NOTE: Make sure that each ECU is in sleep mode before performing the inspection. To enter sleep mode, turn the engine switch from on (IG) to off and wait for 180 seconds or more without operating any switches. Standard Resistance Tester Connection Condition Specified Condition 4B-21 -S5-11 (MPX1) Engine switch off Below 1 ohms S5-11 (MPX1) - Body ground Engine switch off 10 kohms or higher 4B-21 - Body ground Engine switch off 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 3
  3. CHECK HARNESS AND CONNECTOR (SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) - BATTERY, BODY GROUND) Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition S5-8 (B) - S5-12 (E) Always 11 to 14 V Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition S5-12 (E) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 4
  4. REPLACE SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) Replace the sliding roof ECU (sliding roof drive gear sub-assembly). Refer to «DISASSEMBLY [04/2013 - ]»(ref-665854-S41409442712014102400000) Result Proceed to NEXT Result: 1 NEXT See step 5
  5. CHECK DTC OUTPUT Clear the DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665832-S32731231342014102400000) Body Electrical > Main Body > Clear DTCs Recheck for DTCs. Body Electrical > Main Body > Trouble Codes OK DTC B1273 is not output. Result Proceed to OK NG Result: 1 OK END (SLIDING ROOF ECU (SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY) WAS DEFECTIVE) Result: 2 NG REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000)

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