Lighting System (Interior) (Diagnostics & Circuit Tests): Other Lexus IS III

PRECAUTION [04/2013 - ]

1. PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL NOTE: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected. System Name See Procedure Air Conditioning System Refer to «INITIALIZATION [04/2013 - ]»(ref-665529-S01115916402014102400000) Variable Gear Ratio Steering System

Scheme 14

Scheme 15

Scheme 16

Scheme 17

CAUTION / NOTICE / HINT

HINT

1. Use the following procedure to troubleshoot the lighting system.
2. *: Use the Techstream.

PROCEDURE

1. VEHICLE BROUGHT TO WORKSHOP Result Proceed to NEXT Result: 1 NEXT See step 2
2. CUSTOMER PROBLEM ANALYSIS AND SYMPTOM CHECK Result Proceed to NEXT Result: 1 NEXT See step 3
3. INSPECT BATTERY VOLTAGE Measure the battery voltage. Standard Voltage 11 to 14 V If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step. Result Proceed to NEXT Result: 1 NEXT See step 4
4. INSPECT CAN COMMUNICATION SYSTEM* Use the Techstream to check if the CAN communication system is functioning normally. Refer to «DIAGNOSIS SYSTEM [04/2013 - ]»(ref-665810-S14264089842014102400000) Result Result Proceed to CAN communication system DTCs are not output. A CAN communication system DTCs are output. B Result: 2 B GO TO CAN COMMUNICATION SYSTEM. Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665785-S15342612202014102400000) Result: 1 A See step 5
5. PROBLEM SYMPTOMS TABLE Refer to Problem Symptoms Table. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665541-S23960105662014102400000) Result Result Proceed to Fault is not listed in Problem Symptoms Table. A Fault is listed in Problem Symptoms Table. B Result: 2 B GO TO PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665541-S23960105662014102400000) Result: 1 A See step 6
6. OVERALL ANALYSIS AND TROUBLESHOOTING* Data List / Active Test Refer to «DATA LIST / ACTIVE TEST [04/2013 - ]»(ref-665541-S32530013422014102400000) Terminals of ECU Refer to «TERMINALS OF ECU [04/2013 - ]»(ref-665541-S21317332032014102400000) Result Proceed to NEXT Result: 1 NEXT See step 7
7. ADJUST, REPAIR OR REPLACE Result Proceed to NEXT Result: 1 NEXT See step 8
8. CONFIRMATION TEST Result Proceed to NEXT Result: 1 NEXT END

1. CUSTOMIZE LIGHTING SYSTEM (INT) Customizing using the Techstream HINT: The following items can be customized. NOTE: When the customer requests a change in a function, first make sure that the function can be customized. Be sure to make a note of the current settings before customizing. When troubleshooting a function, first make sure that the function is set to the default setting. Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Customize Setting / Illuminated Entry. Select the setting by referring to the table below. Illuminated Entry Tester Display Description Default Setting ECU Lighting Time Changes the lighting time of the following lights that are operated by the timer function when the door switch of the map light assembly is on: Engine switch illumination Map light assembly (front dome light) Spot light assembly (rear dome light) No. 1 interior illumination light assembly LH No. 1 interior illumination light assembly RH Front Door Inside Handle Illumination Light Assembly LH Front Door Inside Handle Illumination Light Assembly RH 15 s 10:30 s, 00:15 s, 01:7.5 s Main body ECU (Multiplex network body ECU) I/L when ACC OFF Turns off the following lights automatically when the door switch of the map light assembly is on and the engine switch is turned from on (IG) or on (ACC) to off: Engine switch illumination Map light assembly (front dome light) Spot light assembly (rear dome light) No. 1 interior illumination light assembly LH No. 1 interior illumination light assembly RH ON 0:OFF, 1:ON Main body ECU (Multiplex network body ECU) I/L ON W/Door Key Unlock Lights up the following lights automatically when the door switch of the map light assembly is on and the doors are unlocked by an unlock operation (key-linked, wireless or entry unlock function): Engine switch illumination Map light assembly (front dome light) Spot light assembly (rear dome light) No. 1 interior illumination light assembly LH No. 1 interior illumination light assembly RH ON 0:OFF, 1:ON Main body ECU (Multiplex network body ECU) Room Light when Aprchd Lights up the following lights when the door switch of the map light assembly is on and the electrical key transmitter sub-assembly is brought near the vehicle: Engine switch illumination Map light assembly (front dome light) Spot light assembly (rear dome light) No. 1 interior illumination light assembly LH No. 1 interior illumination light assembly RH ON 0:OFF, 1:ON Main body ECU (Multiplex network body ECU) Light Control Dims the following lights when the engine switch is on (IG) and the shift lever is moved to any position other than P: Front door inside handle illumination light assembly LH Front door inside handle illumination light assembly RH ON 0:OFF, 1:ON Main body ECU (Multiplex network body ECU) Interior Light Control Lights up the following lights: Engine switch illumination Map light assembly (front dome light) Spot light assembly (rear dome light) No. 1 interior illumination light assembly LH No. 1 interior illumination light assembly RH Front door inside handle illumination light assembly LH Front door inside handle illumination light assembly RH ON 0:OFF, 1:ON Main body ECU (Multiplex network body ECU) Interior Illumination Light Lights up the following lights: Front door inside handle illumination light assembly LH Front door inside handle illumination light assembly RH ON 0:OFF, 1:ON Main body ECU (Multiplex network body ECU) Customizing using the multi-display Turn the engine switch on (IG). Enter the following menus: SETUP / Vehicle / Vehicle Customization / Light Settings. Select the setting by referring to the table below: LIGHT SETTINGS Display Default Content Setting Relevant ECU Interior Light Off Timer 15 sec. Changes the lighting time of the following lights that are operated by the timer function when the door switch of the map light assembly is on: Engine switch illumination Map light assembly (front dome light) Spot light assembly (rear dome light) No. 1 interior illumination light assembly LH No. 1 interior illumination light assembly RH Front Door Inside Handle Illumination Light Assembly LH Front Door Inside Handle Illumination Light Assembly RH Off, 15 sec., 7.5 sec. or 30 sec. Main body ECU (Multiplex network body ECU)

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

1. CHECK FOR DTC (SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function)) Clear the DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665539-S07892490442014102400000) Body Electrical > Smart Access > Clear DTCs Check for DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665539-S07892490442014102400000) Body Electrical > Smart Access > Trouble Codes Result Result Proceed to Smart Access System with Push-button Start (for Start Function) DTCs are not output A Smart Access System with Push-button Start (for Start Function) DTCs are output B Result: 2 B GO TO SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665539-S15061547412014102400000) Result: 1 A See step 2
2. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Main Body > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note IG SW Engine switch on (IG) signal ON or OFF ON: Engine switch on (IG) OFF: Engine switch off - Body Electrical > Main Body > Data List Tester Display IG SW OK Normal conditions listed above are displayed. Result Proceed to OK NG Result: 1 OK PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665541-S23960105662014102400000) Result: 2 NG See step 3
3. CHECK HARNESS AND CONNECTOR (POWER SOURCE - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Disconnect the 4E instrument panel junction block assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition 4E-1 - Body ground Always 11 to 14 V Result Proceed to OK NG Result: 3 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 4
4. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Measure the resistance according to the value(s) in the table below. *a Component without harness connected (Instrument Panel Junction Block Assembly) - - Standard Resistance Tester Connection Condition Specified Condition 4E-1 - MB-32 (IG) Battery not connected to 4C-22 and 4B-7 10 kohms or higher 4E-1 - MB-32 (IG) Battery positive (+) --> 4C-22 Battery negative (-) --> 4B-7 Below 1 ohms Result Proceed to OK NG Result: 1 OK REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 2 NG REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000)

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

Scheme 18

1. CHECK FOR DTC (SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function)) Clear the DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665539-S07892490442014102400000) Body Electrical > Smart Access > Clear DTCs Check for the DTCs. Refer to «DTC CHECK / CLEAR [04/2013 - ]»(ref-665539-S07892490442014102400000) Body Electrical > Smart Access > Trouble Codes Result Result Proceed to Smart Access System with Push-button Start (for Start Function) DTCs are not output A Smart Access System with Push-button Start (for Start Function) DTCs are output B Result: 2 B GO TO SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING [04/2013 - ]»(ref-665539-S15061547412014102400000) Result: 1 A See step 2
2. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Main Body > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note ACC SW Engine switch on (ACC) signal ON or OFF ON: Engine switch on (ACC) OFF: Engine switch off - Body Electrical > Main Body > Data List Tester Display ACC SW OK Normal conditions listed above are displayed. Result Proceed to OK NG Result: 1 OK PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665541-S23960105662014102400000) Result: 2 NG See step 3
3. CHECK HARNESS AND CONNECTOR (POWER SOURCE - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Disconnect the 4E instrument panel junction block assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition 4E-1 - Body ground Always 11 to 14 V Result Proceed to OK NG Result: 3 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 4
4. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Measure the resistance according to the value(s) in the table below. *a Component without harness connected (Instrument Panel Junction Block Assembly) - - Standard Resistance Tester Connection Condition Specified Condition 4E-1 - MB-30 (ACC) Battery not connected to 4B-19 and 4B-7 10 kohms or higher 4E-1 - MB-30 (ACC) Battery positive (+) --> 4B-19 Battery negative (-) --> 4B-7 Below 1 ohms Result Proceed to OK NG Result: 1 OK REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 2 NG REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000)

Note. Before replacing the main body ECU (multiplex network body ECU), refer to Registration. Refer to REGISTRATION [04/2013 - ]

1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Main Body > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note FR Door Courtesy SW Front door courtesy light switch assembly RH signal ON or OFF ON: Front door RH open OFF: Front door RH closed - FL Door Courtesy SW Front door courtesy light switch assembly LH signal ON or OFF ON: Front door LH open OFF: Front door LH closed - Body Electrical > Main Body > Data List Tester Display FR Door Courtesy SW FL Door Courtesy SW OK Normal conditions listed above are displayed. Result Result Proceed to OK A FR Door Courtesy SW is not normal B FL Door Courtesy SW is not normal C Result: 1 A PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665541-S23960105662014102400000) Result: 3 C See step 4 Result: 2 B See step 2
2. INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY RH Remove the front door courtesy light switch assembly RH. Refer to «REMOVAL [04/2013 - ]»(ref-665780-S27763497382014102400000) Inspect the front door courtesy light switch assembly RH. Refer to «INSPECTION [04/2013 - ]»(ref-665780-S20922737172014102400000) OK Front door courtesy light switch assembly RH is normal. Result Proceed to OK NG Result: 3 NG REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY RH. Refer to «REMOVAL [04/2013 - ]»(ref-665780-S27763497382014102400000) Result: 1 OK See step 3
3. CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY RH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) Disconnect the K2 main body ECU (multiplex network body ECU) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition P6-1 - K2-27 (FRCY) Always Below 1 ohms P6-1 - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 1 OK REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR
4. INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH Remove the front door courtesy light switch assembly LH. Refer to «REMOVAL [04/2013 - ]»(ref-665780-S27763497382014102400000) Inspect the front door courtesy light switch assembly LH. Refer to «INSPECTION [04/2013 - ]»(ref-665780-S20922737172014102400000) OK Front door courtesy light switch assembly LH is normal. Result Proceed to OK NG Result: 3 NG REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH. Refer to «REMOVAL [04/2013 - ]»(ref-665780-S27763497382014102400000) Result: 1 OK See step 5
5. CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) Disconnect the K2 main body ECU (multiplex network body ECU) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Q14-1 - K2-6 (FLCY) Always Below 1 ohms Q14-1 - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 1 OK REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR

Note. Before replacing the main body ECU (multiplex network body ECU), refer to Registration. Refer to REGISTRATION [04/2013 - ]

1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Main Body > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note RR Door Courtesy SW Rear door courtesy light switch assembly RH signal ON or OFF ON: Rear door RH open OFF: Rear door RH closed - RL Door Courtesy SW Rear door courtesy light switch assembly LH signal ON or OFF ON: Rear door LH open OFF: Rear door LH closed - Body Electrical > Main Body > Data List Tester Display RR Door Courtesy SW RL Door Courtesy SW OK Normal conditions listed above are displayed. Result Proceed to Proceed to OK A RR Door Courtesy SW is not normal B RL Door Courtesy SW is not normal C Result: 1 A PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665541-S23960105662014102400000) Result: 3 C See step 5 Result: 2 B See step 2
2. INSPECT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY RH Remove the rear door courtesy light switch assembly RH. Refer to «REMOVAL [04/2013 - ]»(ref-665780-S32745706082014102400000) Inspect the rear door courtesy light switch assembly RH. Refer to «INSPECTION [04/2013 - ]»(ref-665780-S24657489252014102400000) OK Rear door courtesy light switch assembly RH is normal. Result Proceed to OK NG Result: 3 NG REPLACE REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY RH. Refer to «REMOVAL [04/2013 - ]»(ref-665780-S32745706082014102400000) Result: 1 OK See step 3
3. CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY RH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Disconnect the 4B instrument panel junction block assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition P7-1 - 4B-17 Always Below 1 ohms P7-1 - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 4
4. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Measure the resistance according to the value(s) in the table below. *a Component without harness connected (Instrument Panel Junction Block Assembly) - - Standard Resistance Tester Connection Condition Specified Condition 4B-17 - MB-2 (RCTY) Always Below 1 ohms Result Proceed to OK NG Result: 1 OK REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 2 NG REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000)
5. INSPECT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LH Remove the rear door courtesy light switch assembly LH. Refer to «REMOVAL [04/2013 - ]»(ref-665780-S32745706082014102400000) Inspect the rear door courtesy light switch assembly LH. Refer to «INSPECTION [04/2013 - ]»(ref-665780-S24657489252014102400000) OK Rear door courtesy light switch assembly LH is normal. Result Proceed to OK NG Result: 3 NG REPLACE REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LH. Refer to «REMOVAL [04/2013 - ]»(ref-665780-S32745706082014102400000) Result: 1 OK See step 6
6. CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Disconnect the 4D instrument panel junction block assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Q16-1 - 4D-25 Always Below 1 ohms Q16-1 - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 7
7. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Measure the resistance according to the value(s) in the table below. *a Component without harness connected (Instrument Panel Junction Block Assembly) - - Standard Resistance Tester Connection Condition Specified Condition 4D-25 - MB-13 (LCTY) Always Below 1 ohms Result Proceed to OK NG Result: 1 OK REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 2 NG REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000)

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

HINT

The DOME CUT relay supplies power to the interior lights. If all the lights that use power from the DOME CUT relay do not turn on, check the interior light auto cut circuit first.

Refer to Interior Light Auto Cut Circuit [04/2013 - ]

1. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Active Test. Perform the Active Test according to the display on the Techstream. Body Electrical > Main Body > Active Test Tester Display Measurement Item Control Range Diagnostic Note Illuminated Entry System Turns on the lights that are controlled by the illuminated entry system*1 ON or OFF Perform the Active Test with door switch in the map light assembly turned on. *1: Refer to Description for the lights that are controlled by the illuminated entry system. Refer to «DESCRIPTION»(ref-665541-S04629146872014102400000) Body Electrical > Main Body > Active Test Tester Display Illuminated Entry System Result Proceed to OK NG Result: 1 OK PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665541-S23960105662014102400000) Result: 3 NG See step 2
2. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Measure the resistance according to the value(s) in the table below. *a Component without harness connected (Instrument Panel Junction Block Assembly) - - Standard Resistance Tester Connection Condition Specified Condition 4B-10 - MB-1 (ILE) Always Below 1 ohms 4B-11 - MB-1 (ILE) Always Below 1 ohms Result Proceed to OK NG Result: 1 OK REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 2 NG REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000)

Note. Before replacing the main body ECU (multiplex network body ECU), refer to Registration. Refer to REGISTRATION [04/2013 - ]

1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Main Body > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note Dome Light DOOR SW Door switch signal ON or OFF ON: Door switch pressed OFF: Door switch not pressed - Dome Light SW Front dome light switch signal ON or OFF ON: Front dome light switch pressed OFF: Front dome light switch not pressed - Body Electrical > Main Body > Data List Tester Display Dome Light DOOR SW Dome Light SW OK Normal conditions listed above are displayed. Result Result Proceed to OK A Dome Light DOOR SW is not normal B Dome Light SW is not normal C Result: 1 A PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665541-S23960105662014102400000) Result: 3 C See step 4 Result: 2 B See step 2
2. INSPECT MAP LIGHT ASSEMBLY Remove the map light assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665780-S37820019152014102400000) Inspect the map light assembly. Refer to «INSPECTION [04/2013 - ]»(ref-665780-S03996387852014102400000) OK Map light assembly is normal. Result Proceed to OK NG Result: 2 NG REPLACE MAP LAMP ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665780-S37820019152014102400000) Result: 1 OK See step 3
3. CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND) Disconnect the K1 main body ECU (multiplex network body ECU) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition S4-18 (DOOR) - K1-27 (DMDR) Always Below 1 ohms S3-19 (GND) - Body ground Always Below 1 ohms S4-18 (DOOR) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 1 OK REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR
4. INSPECT MAP LIGHT ASSEMBLY Remove the map light assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665780-S37820019152014102400000) Inspect the map light assembly. Refer to «INSPECTION [04/2013 - ]»(ref-665780-S03996387852014102400000) OK Map light assembly is normal. Result Proceed to OK NG Result: 2 NG REPLACE MAP LIGHT ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665780-S37820019152014102400000) Result: 1 OK See step 5
5. CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND) Disconnect the K1 main body ECU (multiplex network body ECU) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition S4-19 (CILL) - K1-28 (DMON) Always Below 1 ohms S3-19 (GND) - Body ground Always Below 1 ohms S4-19 (CILL) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 1 OK REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR

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

1. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Active Test. Perform the Active Test according to the display on the Techstream. Body Electrical > Main Body > Active Test Tester Display Measurement Item Control Range Diagnostic Note Interior Illumination Light1 Front door inside handle illumination lights ON or OFF Precondition for performing the Active Test to turn lights on and off: Engine switch is turned off just before performing the Active Test. Body Electrical > Main Body > Active Test Tester Display Interior Illumination Light1 OK Front door inside handle illumination lights comes on. Result Proceed to OK NG Result: 1 OK PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665541-S23960105662014102400000) Result: 2 NG See step 2
2. CHECK HARNESS AND CONNECTOR (POWER SOURCE - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Disconnect the 4F instrument panel junction block assembly connector. Measure the voltage according to the value(s) in the table below. Standard Voltage Tester Connection Condition Specified Condition 4F-1 - Body ground Always 11 to 14 V Result Proceed to OK NG Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR Result: 1 OK See step 3
3. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Measure the resistance according to the value(s) in the table below. *a Component without harness connected (Instrument Panel Junction Block Assembly) - - Standard Resistance Tester Connection Condition Specified Condition 4F-1 - 4D-27 Always Below 1 ohms 4F-1 - 4B-15 Always Below 1 ohms 4B-22 - MB-26 (FSPT) Always Below 1 ohms 4D-26 - MB-26 (FSPT) Always Below 1 ohms Result Proceed to OK NG Result: 1 OK REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 2 NG REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000)

1. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Access / Active Test. Perform the Active Test according to the display on the Techstream. Body Electrical > Smart Access > Active Test Tester Display Measurement Item Control Range Diagnostic Note Power/Engine SW Light Engine switch illumination OFF or ON When performing this Active Test, make sure the following condition is met: The engine switch illumination is off (15 seconds or more have elapsed since it turned from on to off) and the engine switch is on (ACC) or on (IG), or the engine is running. Body Electrical > Smart Access > Active Test Tester Display Power/Engine SW Light OK Engine switch illumination comes on. Result Proceed to OK NG Result: 1 OK PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665541-S23960105662014102400000) Result: 2 NG See step 2
2. INSPECT ENGINE SWITCH Remove the engine switch. Refer to «REMOVAL [04/2013 - ]»(ref-665723-S23918338522014102400000) (for 2GR-FSE) Refer to «REMOVAL [04/2013 - ]»(ref-665749-S35121034292014102400000) (for 4GR-FSE) Inspect the engine switch. Refer to «INSPECTION [04/2013 - ]»(ref-665723-S23051526892014102400000) (for 2GR-FSE) Refer to «INSPECTION [04/2013 - ]»(ref-665749-S07048063032014102400000) (for 4GR-FSE) OK Engine switch illumination is normal. Result Proceed to OK NG Result: 2 NG REPLACE ENGINE SWITCH Refer to «REMOVAL [04/2013 - ]»(ref-665723-S23918338522014102400000) (for 2GR-FSE) Refer to «REMOVAL [04/2013 - ]»(ref-665749-S35121034292014102400000) (for 4GR-FSE) Result: 1 OK See step 3
3. CHECK HARNESS AND CONNECTOR (ENGINE SWITCH - CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) Disconnect the K6 certification ECU (smart key ECU assembly) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition K50-9 (SWIL) - K6-17 (SWIL) Always Below 1 ohms K50-6 (AGND) - K6-12 (AGND) Always Below 1 ohms K50-9 (SWIL) - Body ground Always 10 kohms or higher K50-6 (AGND) - Body ground Always 10 kohms or higher Result Proceed to OK NG Result: 1 OK REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «REMOVAL [04/2013 - ]»(ref-665834-S32475940332014102400000) Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR

Note. Before replacing the main body ECU (multiplex network body ECU), refer to Registration. Refer to REGISTRATION [04/2013 - ]

Scheme 19

Scheme 20

1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Main Body > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note FR Door Lock Pos Front door RH unlock detection switch signal LOCK or UNLOCK LOCK: Front door RH locked UNLOCK: Front door RH unlocked - FL Door Lock Pos Front door LH unlock detection switch signal LOCK or UNLOCK LOCK: Front door LH locked UNLOCK: Front door LH unlocked - RR-Door Lock Pos SW Rear door RH unlock detection switch signal ON or OFF ON: Rear door RH unlocked OFF: Rear door RH locked - RL-Door Lock Pos SW Rear door LH unlock detection switch signal ON or OFF ON: Rear door LH unlocked OFF: Rear door LH locked - Body Electrical > Main Body > Data List Tester Display FR Door Lock Pos FL Door Lock Pos RR-Door Lock Pos SW RL-Door Lock Pos SW Result Result Proceed to OK A FL Door Lock Pos is not normal B FR Door Lock Pos is not normal C RL-Door Lock Pos SW is not normal D RR-Door Lock Pos SW is not normal E Result: 1 A PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665541-S23960105662014102400000) Result: 3 C See step 5 Result: 4 D See step 8 Result: 5 E See step 11 Result: 2 B See step 2
2. INSPECT FRONT DOOR LOCK WITH MOTOR ASSEMBLY LH Remove the front door lock with motor assembly LH. Refer to «REMOVAL [04/2013 - ]»(ref-665861-S26289576132014102400000) Inspect the front door lock with motor assembly LH. Refer to «INSPECTION [04/2013 - ]»(ref-665861-S09563010582014102400000) OK Front door lock with motor assembly LH is normal. Result Proceed to OK NG Result: 2 NG REPLACE FRONT DOOR LOCK WITH MOTOR ASSEMBLY LH. Refer to «REMOVAL [04/2013 - ]»(ref-665861-S26289576132014102400000) Result: 1 OK See step 3
3. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK WITH MOTOR ASSEMBLY LH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OR BODY GROUND) Disconnect the 4B instrument panel junction block assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition N16-8 (LSSR) - 4B-26 Always Below 1 ohms N16-8 (LSSR) - Body ground Always 10 kohms or higher N16-7 (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. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Measure the resistance according to the value(s) in the table below. *a Component without harness connected (Instrument Panel Junction Block Assembly) - - Standard Resistance Tester Connection Condition Specified Condition MB-19 (LSFL) - 4B-26 Always Below 1 ohms Result Proceed to OK NG Result: 1 OK REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 2 NG REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000)
5. INSPECT FRONT DOOR LOCK WITH MOTOR ASSEMBLY RH Remove the front door lock with motor assembly RH. Refer to «REMOVAL [04/2013 - ]»(ref-665861-S26289576132014102400000) Inspect the front door lock with motor assembly RH. Refer to «INSPECTION [04/2013 - ]»(ref-665861-S09563010582014102400000) OK Front door lock with motor assembly RH is normal. Result Proceed to OK NG Result: 2 NG REPLACE FRONT DOOR LOCK WITH MOTOR ASSEMBLY RH. Refer to «REMOVAL [04/2013 - ]»(ref-665861-S26289576132014102400000) Result: 1 OK See step 6
6. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK WITH MOTOR ASSEMBLY RH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OR BODY GROUND) Disconnect the 4B instrument panel junction block assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition N1-7 (LSSR) - 4B-27 Always Below 1 ohms N1-7 (LSSR) - Body ground Always 10 kohms or higher N1-8 (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 7
7. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Measure the resistance according to the value(s) in the table below. *a Component without harness connected (Instrument Panel Junction Block Assembly) - - Standard Resistance Tester Connection Condition Specified Condition MB-17 (LSFR) - 4B-27 Always Below 1 ohms Result Proceed to OK NG Result: 1 OK REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 2 NG REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000)
8. INSPECT REAR DOOR LOCK WITH MOTOR ASSEMBLY LH Remove the rear door lock with motor assembly LH. Refer to «REMOVAL [04/2013 - ]»(ref-665861-S34134625582014102400000) Inspect the rear door lock with motor assembly LH. Refer to «INSPECTION [04/2013 - ]»(ref-665861-S09080943402014102400000) OK Rear door lock with motor assembly LH is normal. Result Proceed to OK NG Result: 2 NG REPLACE REAR DOOR LOCK WITH MOTOR ASSEMBLY LH. Refer to «REMOVAL [04/2013 - ]»(ref-665861-S34134625582014102400000) Result: 1 OK See step 9
9. CHECK HARNESS AND CONNECTOR (REAR DOOR LOCK WITH MOTOR ASSEMBLY LH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OR BODY GROUND) Disconnect the 4B instrument panel junction block assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition O6-6 (LSSR) - 4B-23 Always Below 1 ohms O6-6 (LSSR) - Body ground Always 10 kohms or higher O6-9 (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 10
10. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Measure the resistance according to the value(s) in the table below. *a Component without harness connected (Instrument Panel Junction Block Assembly) - - Standard Resistance Tester Connection Condition Specified Condition MB-5 (LSWL) - 4B-23 Always Below 1 ohms Result Proceed to OK NG Result: 1 OK REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 2 NG REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000)
11. INSPECT REAR DOOR LOCK WITH MOTOR ASSEMBLY RH Remove the rear door lock with motor assembly RH. Refer to «REMOVAL [04/2013 - ]»(ref-665861-S34134625582014102400000) Inspect the rear door lock with motor assembly RH. Refer to «INSPECTION [04/2013 - ]»(ref-665861-S09080943402014102400000) OK Rear door lock with motor assembly RH is normal. Result Proceed to OK NG Result: 2 NG REPLACE REAR DOOR LOCK WITH MOTOR ASSEMBLY RH. Refer to «REMOVAL [04/2013 - ]»(ref-665861-S34134625582014102400000) Result: 1 OK See step 12
12. CHECK HARNESS AND CONNECTOR (REAR DOOR LOCK WITH MOTOR ASSEMBLY RH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) OR BODY GROUND) Disconnect the K1 main body ECU (multiplex network body ECU) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition O1-6 (LSSR) - K1-2 (LSWR) Always Below 1 ohms O1-6 (LSSR) - Body ground Always 10 kohms or higher O1-9 (E) - Body ground Always Below 1 ohms Result Proceed to OK NG Result: 1 OK REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 2 NG REPAIR OR REPLACE HARNESS OR CONNECTOR

Note. Before replacing the main body ECU (multiplex network body ECU), refer to Registration. Refer to REGISTRATION [04/2013 - ]

Scheme 21

1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the engine switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Data List. Read the Data List according to the display on the Techstream. Body Electrical > Main Body > Data List Tester Display Measurement Item Range Normal Condition Diagnostic Note Luggage Courtesy SW Luggage compartment door courtesy switch signal ON or OFF ON: Luggage compartment door open OFF: Luggage compartment door closed - Body Electrical > Main Body > Data List Tester Display Luggage Courtesy SW OK Normal conditions listed above are displayed. Result Proceed to OK NG Result: 1 OK PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE [04/2013 - ]»(ref-665541-S23960105662014102400000) Result: 2 NG See step 2
2. INSPECT LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY Remove the luggage compartment door lock assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665861-S20061218282014102400000) Inspect the luggage compartment door courtesy switch built into the luggage compartment door lock assembly. Refer to «INSPECTION [04/2013 - ]»(ref-665861-S31900864272014102400000) OK Luggage compartment door lock assembly is normal. Result Proceed to OK NG Result: 2 NG REPLACE LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665861-S20061218282014102400000) Result: 1 OK See step 3
3. CHECK HARNESS AND CONNECTOR (LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND BODY GROUND) Disconnect the 4D instrument panel junction block assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition Q49-3 (D+) - 4D-16 Always Below 1 ohms Q49-3 (D+) - Body ground Always 10 kohms or higher Q49-2 (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. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Measure the resistance according to the value(s) in the table below. *a Component without harness connected (Instrument Panel Junction Block Assembly) - - Standard Resistance Tester Connection Condition Specified Condition 4D-16 - MB-4 (LGCY) Always Below 1 ohms Result Proceed to OK NG Result: 1 OK REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000) Result: 2 NG REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY. Refer to «REMOVAL [04/2013 - ]»(ref-665734-S14624714932014102400000)