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LIN Communication System (Diagnostic Codes & Symptom Tests): Overview Lexus LX J200 рестайлинг

Communication Devices 14 illustrations ~481 words

DESCRIPTION

This DTC is stored when LIN communication between the master switch and main body ECU (cowl side junction block LH) stops for 10 seconds or more.

DTC CodeDTC Detection ConditionTrouble Area
B1206No communication between the master switch and main body ECU (cowl side junction block LH) for 10 seconds or more.Master switch Main body ECU (cowl side junction block LH) Harness or connector

Scheme 85

Scheme 85: WIRING DIAGRAM

This DTC is stored when LIN communication between the sliding roof ECU and main body ECU (cowl side junction block LH) stops for 10 seconds or more.

DTC CodeDTC Detection ConditionTrouble Area
B1273No communication between the sliding roof ECU and main body ECU (cowl side junction block LH) for 10 seconds or more.Sliding roof ECU Main body ECU (cowl side junction block LH) Harness or connector

Scheme 86

Scheme 86: WIRING DIAGRAM

This DTC is stored when there is an open, short or ECU communication malfunction between the main body ECU (cowl side junction block LH) and certification ECU (smart key ECU assembly).

DTC CodeDTC Detection ConditionTrouble Area
B2287There is an open, short or ECU communication malfunction between the main body ECU (cowl side junction block LH) and certification ECU (smart key ECU assembly).Certification ECU (smart key ECU assembly) Main body ECU (cowl side junction block LH) Harness or connector

Scheme 87

Scheme 87: WIRING DIAGRAM

This DTC is stored when LIN communication between the front power window regulator motor LH and main body ECU (cowl side junction block LH) stops for 10 seconds or more.

DTC CodeDTC Detection ConditionTrouble Area
B2321No communication between the front power window regulator motor LH and main body ECU (cowl side junction block LH) for 10 seconds or more.Front power window regulator motor LH Main body ECU (cowl side junction block LH) Harness or connector

Scheme 88

Scheme 88: WIRING DIAGRAM

This DTC is stored when LIN communication between the front power window regulator motor RH and main body ECU (cowl side junction block LH) stops for 10 seconds or more.

DTC CodeDTC Detection ConditionTrouble Area
B2322No communication between the front power window regulator motor RH and main body ECU (cowl side junction block LH) for 10 seconds or more.Front power window regulator motor RH Main body ECU (cowl side junction block LH) Harness or connector

Scheme 89

Scheme 89: WIRING DIAGRAM

This DTC is stored when LIN communication between the rear power window regulator motor RH and main body ECU (cowl side junction block LH) stops for 10 seconds or more.

DTC CodeDTC Detection ConditionTrouble Area
B2323No communication between the rear power window regulator motor RH and main body ECU (cowl side junction block LH) for 10 seconds or more.Rear power window regulator motor RH Main body ECU (cowl side junction block LH) Harness or connector

Scheme 90

Scheme 90: WIRING DIAGRAM

This DTC is stored when LIN communication between the rear power window regulator motor LH and main body ECU (cowl side junction block LH) stops for 10 seconds or more.

DTC CodeDTC Detection ConditionTrouble Area
B2324No communication between the rear power window regulator motor LH and main body ECU (cowl side junction block LH) for 10 seconds or more.Rear power window regulator motor LH Main body ECU (cowl side junction block LH) Harness or connector

Scheme 91

Scheme 91: WIRING DIAGRAM

The main body ECU (cowl side junction block LH) intermittently monitors the LIN communication bus between the components related to the door and sliding roof. DTC B2325 is stored when a malfunction in the LIN communication bus between the components related to the door and sliding roof is detected consecutively 3 times.

DTC CodeDTC Detection ConditionTrouble Area
B2325The main body ECU (cowl side junction block LH) detects a malfunction in the LIN communication bus between components related to the doors and sliding roof consecutively 3 times.Master switch Front power window regulator motor LH Front power window regulator motor RH Rear power window regulator motor LH Rear power window regulator motor RH Sliding roof ECU Main body ECU (cowl side junction block LH) Harness or connector

Scheme 92

Scheme 92: WIRING DIAGRAM

This DTC is stored when LIN communication between the No. 2 main body ECU and overhead junction block stops for 10 seconds or more.

DTC CodeDTC Detection ConditionTrouble Area
B2405No communication between the No. 2 main body ECU and overhead junction block for 10 seconds or more.Overhead junction block No. 2 main body ECU Harness or connector

Scheme 93

Scheme 93: WIRING DIAGRAM

The certification ECU (smart key ECU assembly) intermittently monitors the LIN communication bus between the components related to certification. DTC B2785 is stored when a malfunction in the LIN communication bus between the components related to certification is detected continuously 3 times.

DTC No.DTC Detection ConditionTrouble Area
B2785The certification ECU (smart key ECU assembly) detects a malfunction in the LIN communication bus between components related to certification continuously 3 times.Certification ECU (smart key ECU assembly) Main body ECU (cowl side junction block LH) ID code box (immobilizer code ECU) Steering lock ECU Harness and connector

Scheme 94

Scheme 94: WIRING DIAGRAM

This DTC is stored when LIN communication between the certification ECU (smart key ECU assembly) and steering lock actuator (steering lock ECU) stops for 10 seconds or more.

DTC CodeDTC Detection ConditionTrouble Area
B2786Periodic transmission from the steering lock ECU stops for 10 seconds or more.Steering lock actuator (Steering lock ECU) Certification ECU (smart key ECU assembly) Harness or connector

Scheme 95

Scheme 95: WIRING DIAGRAM

This DTC is stored when LIN communication between the certification ECU (smart key ECU assembly) and ID code box (immobilizer code ECU) stops for 10 seconds or more.

DTC CodeDTC Detection ConditionTrouble Area
B2789No communication between the certification ECU (smart key ECU assembly) and ID code box (immobilizer code ECU) for 10 seconds or more.ID code box (immobilizer code ECU) Certification ECU (smart key ECU assembly) Harness or connector

Scheme 96

Scheme 96: WIRING DIAGRAM

The LIN communication of the components related to the rain sensor occurs between the rain sensor and windshield wiper ECU.

Scheme 97

Scheme 97: WIRING DIAGRAM

The LIN communication of the components related to the rear heater occurs between the air conditioning amplifier (A/C ECU) and rear air conditioning control panel.

HINT

"Rear heater control panel" refers to the rear air conditioning control panel.

Scheme 98

Scheme 98: WIRING DIAGRAM