Home/Toyota/Prius Plug-in/Toyota Prius Plug-in (2012-2014)/Repair manual/Interior/illumination Lights/Lighting System (Diagnostics & Circuit Tests) (Base): Overv…
Contents Wiring diagrams Section: Interior/illumination Lights All sections

Lighting System (Diagnostics & Circuit Tests) (Base): Overview Toyota Prius Plug-in

Interior/illumination Lights 17 illustrations ~3709 words

SYSTEM DESCRIPTION

  1. ILLUMINATED ENTRY SYSTEM The illuminated entry system has the following control functions: Control Outline Lights that Operate Actuation Area-linked When a registered key enters any actuation area around the doors, the lights that operate turn on. Power Switch Illumination Front Interior Lights Rear Interior Light Footwell Lights When a registered key leaves all of actuation areas around the doors, the lights that operate turn off. Power Switch Illumination Front Interior Lights Rear Interior Light Footwell Lights Door Lock/Unlock-linked When any door is unlocked, the lights that operate turn on. Power Switch Illumination Front Interior Lights Rear Interior Light Footwell Lights When all doors are locked, the lights that operate turn off. Power Switch Illumination Front Interior Lights Rear Interior Light Footwell Lights Door Open/Close-linked When any door is opened, the lights that operate turn on. Power Switch Illumination Front Interior Lights Rear Interior Light Footwell Lights When all doors are closed, the lights that operate turn off. Power Switch-linked When the power switch is turned from on (ACC or IG) to off, the lights that operate turn on. Power Switch Illumination Front Interior Lights Rear Interior Light When the power switch is turned from off to on (ACC or IG) the light that operate turn off. Power Switch Illumination Front Interior Lights Rear Interior Light Footwell Lights Scuff Plate Lights Delay When approximately 15 seconds elapse after any of the following conditions are met, the lights that operate turn off: An actuation area-linked function is used. The door unlock-linked function is active. Any doors is opened and then all doors are closed when the power switch is off. Power Switch Illumination Front Interior Lights Rear Interior Light Footwell Lights Battery Saving When no changes occur in the condition of the doors for 20 minutes and a key is not in the actuation area, these lights turn off. Power Switch Illumination Front Interior Lights Rear Interior Light Footwell Lights

OPERATION CHECK

  1. INSPECT INTERIOR LIGHT CONTROL OPERATION NOTE: Perform this inspection with the customize parameter at the initial setting. HINT: The interior light control illuminates the lights below. Power Switch Illumination Front Interior Lights Rear Interior Light The operation and condition of this control are described below. Operation Condition Fade in and illuminate constantly Any door is opened when all doors are closed. Illuminate for 15 seconds, and then fade out When any of the following conditions is met, the lights illuminate for 15 seconds, and then fade out. The key enters any actuation area around the doors when the power switch is off and all doors are closed*1. Any door is unlocked when the power switch is off, all doors are closed and locked. The power switch is turned from on (ACC) to off when all doors are closed. All doors are closed when any door is opened and the power switch is off. Fade out immediately When any of the following conditions is met, the lights fade out immediately. The power switch is turned from off to on (ACC) when all doors are closed. All doors are locked when the power switch is off, all doors are closed and any door is unlocked. All doors are locked again when all doors are closed and locked. Battery saver When no changes occur in the condition of the doors for 20 minutes and a key is not in the actuation area, these lights turn off. HINT: *1: When the lights are on, if the key leaves all of actuation areas around the doors, after approximately 3 seconds, the lights fade out.
  2. INSPECT FOOTWELL LIGHT CONTROL OPERATION NOTE: Perform this inspection with the customize parameter at the initial setting. HINT: The footwell light control illuminates the lights below. Footwell light LH Footwell light RH The operation and condition of this control are described below. Operation Condition Fade in and illuminate constantly When any of the following conditions is met, the footwell light LH and footwell light RH fade in. Any door is opened when all door are closed. The power switch is turned from off to on (IG)*1. Illuminate for 15 seconds, and then fade out When any of the following conditions is met, the footwell light LH and foot light RH illuminate for 15 seconds and then fade out. Any door is unlocked when the power switch is off, all doors are closed and all doors are locked. The power switch is turned from on (IG) to off when all doors are closed. All doors are closed when any door is opened and the power switch is off. Fade out immediately All doors are locked when the power switch is off, all doors are closed and any door is unlocked.

DESCRIPTION

This circuit detects the power switch on (IG) or off condition, and sends it to the main body ECU (multiplex network body ECU).

Scheme 8

Scheme 8: WIRING DIAGRAM

This circuit detects the power switch on (ACC) or off condition, and sends it to the main body ECU (multiplex network body ECU).

Scheme 9

Scheme 9: WIRING DIAGRAM

The main body ECU (multiplex network body ECU) detects the condition of each door courtesy light switch.

Scheme 10

Scheme 10: WIRING DIAGRAM

Scheme 11

Scheme 11: PROCEDURE

Scheme 12

Scheme 12

Scheme 13

Scheme 13

Scheme 14

Scheme 14
  1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Data List. Read the display on the Techstream. MAIN BODY Tester Display Measurement Item/Range Normal Condition Diagnostic Note RR Door Courtesy SW Rear door courtesy light switch RH signal/ON or OFF ON: Rear door LH or RH open OFF: Rear door LH and RH closed - RL Door Courtesy SW Rear door courtesy light switch LH signal/ON or OFF ON: Rear door LH or RH open OFF: Rear door LH and RH closed - Back Door Courtesy SW Back door courtesy switch signal/ON or OFF ON: Back door open OFF: Back door closed - FR Door Courtesy Front door courtesy light switch RH signal/ON or OFF ON: Front door RH open OFF: Front door RH closed - FL Door Courtesy Front door courtesy light switch LH signal/ON or OFF ON: Front door LH open OFF: Front door LH closed - OK Normal conditions listed above are displayed. Result Result Proceed to OK A Front door courtesy light switch LH or RH does not operate B Rear door courtesy light switch LH or RH does not operate C Back door courtesy switch does not operate D B --> See step 2 C --> See step 5 D --> See step 7 A --> See step 10
  2. INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (LH OR RH) Remove the front door courtesy light switch assembly. Refer to «COMPONENTS»(/toyota/prius-plug-in/2012-2014/remont/interiorillumination-lights/#lighting-system-interior-service-information-base) . Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition 1 - Switch body Pushed 10 kohms or higher 1 - Switch body Not pushed Below 1 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Front Door Courtesy Light Switch Assembly) *2 Switch Body NG --> See step 9 OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - SWITCH) for Front LH Disconnect the 2D instrument panel junction block assembly connector. Disconnect the R6 front door courtesy light switch assembly LH connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 2D-35 - R6-1 Always Below 1 ohms 2D-35 - Body ground Always 10 kohms or higher for Front RH Disconnect the 2D instrument panel junction block assembly connector. Disconnect the S5 front door courtesy light switch assembly RH connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 2D-36 - S5-1 Always Below 1 ohms 2D-36 - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  4. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY for Front LH Remove the instrument panel junction block assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 2D-35 - A-2 (FLCY) Always Below 1 ohms 2D-35 - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Instrument Panel Junction Block Assembly) for Front RH Remove the instrument panel junction block assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 2D-36 - A-4 (FRCY) Always Below 1 ohms 2D-36 - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Instrument Panel Junction Block Assembly) NG --> REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OK --> See step 11
  5. INSPECT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY (LH OR RH) Remove the rear door courtesy light switch assembly. Refer to «COMPONENTS»(/toyota/prius-plug-in/2012-2014/remont/interiorillumination-lights/#lighting-system-interior-service-information-base) . Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition 1 - Switch body Pushed 10 kohms or higher 1 - Switch body Not pushed Below 1 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Rear Door Courtesy Light Switch Assembly) *2 Switch Body NG --> See step 12 OK: Go to next step
  6. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - REAR COURTESY LIGHT SWITCH) for Rear LH Disconnect the L7 main body ECU (multiplex network body ECU) connector. Disconnect the R13 rear door courtesy light switch assembly LH connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition L7-6 (LRCY) - R13-1 Always Below 1 ohms L7-6 (LRCY) - Body ground Always 10 kohms or higher for Rear RH Disconnect the L7 main body ECU (multiplex network body ECU) connector. Disconnect the S10 rear door courtesy light switch assembly RH connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition L7-6 (LRCY) - S10-1 Always Below 1 ohms L7-6 (LRCY) - Body ground Always 10 kohms or higher NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 11
  7. INSPECT BACK DOOR LOCK ASSEMBLY Remove the back door lock assembly. Refer to «COMPONENTS»(/toyota/prius-plug-in/2012-2014/remont/interiorillumination-lights/#lighting-system-interior-service-information-base) . Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Switch Condition Specified Condition 1 (E) - 2 (+) Locked 10 kohms or higher 1 (E) - 2 (+) Unlocked Below 1 ohms TEXT IN ILLUSTRATION *1 Component without harness connected (Back Door Lock Assembly) *2 Lock *3 Unlock NG --> See step 13 OK: Go to next step
  8. CHECK HARNESS AND CONNECTOR (BACK DOOR LOCK - MAIN BODY ECU) Disconnect the L7 main body ECU (multiplex network body ECU) connector. Disconnect the R18 back door lock assembly connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition L7-19 (BCTY) - R18-2 (+) Always Below 1 ohms L7-19 (BCTY) - Body ground Always 10 kohms or higher R18-1 (E) - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 11
  9. REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-plug-in/2012-2014/remont/interiorillumination-lights/#lighting-system-interior-service-information-base)
  10. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-551596-S21574555002013051500000)
  11. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «COMPONENTS»(/toyota/prius-plug-in/2012-2014/remont/body-electrical/#power-distribution-service-information-base)
  12. REPLACE REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-plug-in/2012-2014/remont/interiorillumination-lights/#lighting-system-interior-service-information-base)
  13. REPLACE BACK DOOR LOCK ASSEMBLY. Refer to «COMPONENTS»(/toyota/prius-plug-in/2012-2014/remont/interiorillumination-lights/#lighting-system-interior-service-information-base)

The illuminated entry system controls the interior lights.

Scheme 15

Scheme 15: WIRING DIAGRAM

Scheme 16

Scheme 16
  1. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Active Test. Check that the lights operate. MAIN BODY Tester Display Test Part Control Range Diagnostic Note Illuminated Entry System Interior lights ON/OFF Interior light door switch on and all doors closed OK Each light fades in. NG --> See step 2 OK --> See step 5
  2. CHECK HARNESS AND CONNECTOR (BATTERY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) Disconnect the 2A 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 2A-52 - Body ground Always 11 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Instrument Panel Junction Block Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  3. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 2A-52 - A-1 (ILE) Always Below 1 ohms A-1 (ILE) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Instrument Panel Junction Block Assembly) NG --> REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OK --> See step 4
  4. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «COMPONENTS»(/toyota/prius-plug-in/2012-2014/remont/body-electrical/#power-distribution-service-information-base)
  5. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-551596-S21574555002013051500000)

The main body ECU (multiplex network ECU) controls the footwell lights.

Scheme 17

Scheme 17: WIRING DIAGRAM

Scheme 18

Scheme 18: PROCEDURE

Scheme 19

Scheme 19
  1. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Active Test. Check that the footwell lights come on. MAIN BODY Tester Display Test Part Control Range Diagnostic Note Step Light Operation Footwell lights ON/OFF Power switch off OK Footwell lights come on. NG --> See step 2 OK --> See step 5
  2. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BATTERY) Disconnect the 2B 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 2B-17 - Body ground Always 11 to 14 V 2B-18 - Body ground Always 11 to 14 V TEXT IN ILLUSTRATION *1 Front view of wire harness connector (to Instrument Panel Junction Block Assembly) NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  3. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 2B-17 - A-26 (FSPT) Always Below 1 ohms 2B-18 - A-26 (FSPT) Always Below 1 ohms A-26 (FSPT) - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Instrument Panel Junction Block Assembly) NG --> REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OK --> See step 4
  4. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «COMPONENTS»(/toyota/prius-plug-in/2012-2014/remont/body-electrical/#power-distribution-service-information-base)
  5. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-551596-S21574555002013051500000)

The illuminated entry system controls the power switch illumination.

Scheme 20

Scheme 20: WIRING DIAGRAM

Scheme 21

Scheme 21: PROCEDURE
  1. PERFORM ACTIVE TEST USING TECHSTREAM Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Key / Active Test. Check that the illumination operates. SMART KEY Tester Display Test Part Control Range Diagnostic Note Power/Engine SW Light Power switch illumination ON/OFF All doors closed OK Power switch illumination comes on. NG --> See step 2 OK --> See step 5
  2. INSPECT POWER SWITCH Remove the power switch. Refer to «COMPONENTS»(/toyota/prius-plug-in/2012-2014/remont/starter/#starting-system-service-information-base) . Connect a positive (+) lead from the battery to terminal 11 and a negative (-) lead to terminal 5. Check that the illumination comes on. OK Power switch illumination comes on. TEXT IN ILLUSTRATION *1 Component without harness connected (Power Switch) NG --> See step 4 OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (POWER SWITCH - CERTIFICATION ECU AND BODY GROUND) Disconnect the L62 certification ECU (smart key ECU assembly) connector. Disconnect the L43 power switch connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition L43-11 (SWIL) - L62-11 (SWIL) Always Below 1 ohms L43-11 (SWIL) - Body ground Always 10 kohms or higher L43-5 (GND) - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 6
  4. REPLACE POWER SWITCH. Refer to «COMPONENTS»(/toyota/prius-plug-in/2012-2014/remont/starter/#starting-system-service-information-base)
  5. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-551596-S21574555002013051500000)
  6. REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY). Refer to «COMPONENTS»(ref-551589-S07833253372013051500000)

The main body ECU (multiplex network body ECU) detects the condition of each door unlock detection switch.

Scheme 22

Scheme 22: WIRING DIAGRAM

Scheme 23

Scheme 23: PROCEDURE

Scheme 24

Scheme 24
  1. READ VALUE USING TECHSTREAM Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Main Body / Data List. Read the display on the Techstream. MAIN BODY Tester Display Measurement Item/Range Normal Condition Diagnostic Note FL Door Lock Pos Front door unlock detection switch LH signal/ON or OFF ON: Front door LH unlocked OFF: Front door LH locked - FR Door Lock Pos Front door unlock detection switch RH signal/ON or OFF ON: Front door RH unlocked OFF: Front door RH locked - RL-Door Lock Pos SW Rear door unlock detection switch LH signal/ON or OFF ON: Rear door LH or RH unlocked OFF: Rear door LH and RH locked - RR-Door Lock Pos SW Rear door unlock detection switch RH signal/ON or OFF ON: Rear door LH or RH unlocked OFF: Rear door LH and RH locked - Result Result Proceed to OK A Front door unlock detection switch LH does not operate B Front door unlock detection switch RH does not operate C Rear door unlock detection switch LH does not operate D Rear door unlock detection switch RH does not operate E B --> See step 2 C --> See step 4 D --> See step 6 E --> See step 9 A --> See step 12
  2. INSPECT FRONT DOOR LOCK ASSEMBLY LH Inspect the front door lock assembly LH. Refer to «INSPECTION»(ref-551619-S30810794722013051500000). OK Front door lock assembly LH is normal. NG --> See step 13 OK: Go to next step
  3. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK ASSEMBLY LH - MAIN BODY ECU AND BODY GROUND) Disconnect the O8 front door lock assembly LH connector. Disconnect the L7 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 O8-8 (LSSR) - L7-7 (LSFL) Always Below 1 ohms O8-8 (LSSR) - Body ground Always 10 kohms or higher O8-7 (E) - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 17
  4. INSPECT FRONT DOOR LOCK ASSEMBLY RH Inspect the front door lock assembly RH. Refer to «INSPECTION»(ref-551619-S30810794722013051500000). OK Front door lock assembly RH is normal. NG --> See step 14 OK: Go to next step
  5. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK ASSEMBLY RH - MAIN BODY ECU AND BODY GROUND) Disconnect the N8 front door lock assembly RH connector. Disconnect the L7 main body ECU (multiplex network body ECU) connector. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection (Symbols) Condition Specified Condition N8-7 (LSSR) - L7-18 (LSFR) Always Below 1 ohms N8-7 (LSSR) - Body ground Always 10 kohms or higher N8-8 (E) - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK --> See step 17
  6. INSPECT REAR DOOR LOCK ASSEMBLY LH Inspect the rear door lock assembly LH. Refer to «INSPECTION»(ref-551619-S29474504482013051500000). OK Rear door lock assembly LH is normal. NG --> See step 15 OK: Go to next step
  7. CHECK HARNESS AND CONNECTOR (REAR DOOR LOCK ASSEMBLY LH - MAIN BODY ECU AND BODY GROUND) Disconnect the Q1 rear door lock assembly LH connector. Disconnect the 2D 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 Q1-6 (LSSR) - 2D-25 Always Below 1 ohms Q1-6 (LSSR) - Body ground Always 10 kohms or higher Q1-9 (E) - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  8. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 2D-25 - A-5 (LSR) Always Below 1 ohms 2D-25 - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Instrument Panel Junction Block Assembly) NG --> REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OK --> See step 17
  9. INSPECT REAR DOOR LOCK ASSEMBLY RH Inspect the rear door lock assembly RH. Refer to «INSPECTION»(ref-551619-S29474504482013051500000). OK Rear door lock assembly RH is normal. NG --> See step 16 OK: Go to next step
  10. CHECK HARNESS AND CONNECTOR (REAR DOOR LOCK ASSEMBLY RH - MAIN BODY ECU AND BODY GROUND) Disconnect the P1 rear door lock assembly RH connector. Disconnect the 2B 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 P1-6 (LSSR) - 2B-29 Always Below 1 ohms P1-6 (LSSR) - Body ground Always 10 kohms or higher P1-9 (E) - Body ground Always Below 1 ohms NG --> REPAIR OR REPLACE HARNESS OR CONNECTOR OK: Go to next step
  11. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Remove the instrument panel junction block assembly. Measure the resistance according to the value(s) in the table below. Standard Resistance Tester Connection Condition Specified Condition 2B-29 - A-5 (LSR) Always Below 1 ohms 2B-29 - Body ground Always 10 kohms or higher TEXT IN ILLUSTRATION *1 Component without harness connected (Instrument Panel Junction Block Assembly) NG --> REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY OK --> See step 17
  12. PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to «PROBLEM SYMPTOMS TABLE»(ref-551596-S21574555002013051500000)
  13. REPLACE FRONT DOOR LOCK ASSEMBLY LH. Refer to «COMPONENTS»(ref-551619-S01632617062013051500000)
  14. REPLACE FRONT DOOR LOCK ASSEMBLY RH. Refer to «COMPONENTS»(ref-551619-S01632617062013051500000)
  15. REPLACE REAR DOOR LOCK ASSEMBLY LH. Refer to «COMPONENTS»(ref-551619-S40433579512013051500000)
  16. REPLACE REAR DOOR LOCK ASSEMBLY RH. Refer to «COMPONENTS»(ref-551619-S40433579512013051500000)
  17. REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU). Refer to «COMPONENTS»(/toyota/prius-plug-in/2012-2014/remont/body-electrical/#power-distribution-service-information-base)

See also:
INSPECTION
COMPONENTS
COMPONENTS