| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001MR2Q |
| Model Year Start: 2020 | Model: RAV4 | Prod Date Range: [10/2019 - 01/2020] |
| Title: LIGHTING (INT): LIGHTING SYSTEM: Interior Light Circuit; 2020 MY RAV4 RAV4 HV [10/2019 - 01/2020] | ||
|
Interior Light Circuit |
DESCRIPTION
The main body ECU (multiplex network body ECU) controls the operation of the following lights:
- Map light assembly
- No. 1 room light assembly
- Transponder key coil*1
- No. 1 interior illumination light assembly (footwell light)*2
- No. 2 interior illumination light assembly (footwell light)*2
- No. 3 interior illumination light assembly (center tray light)*3
- No. 4 interior illumination light assembly (driver side tray light)*3
- No. 5 interior illumination light assembly (front passenger side tray light)*3
-
No. 6 interior illumination light assembly (cup holder light)*4
- *1: w/o Smart Key System
- *2: w/ Footwell Light
- *3: w/ Tray Light
- *4: w/ Cup Holder Light
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- Inspect the fuses for circuits related to this system before performing the following procedure.
-
w/ Smart Key System:
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.
PROCEDURE
|
1. |
CHECK INTERIOR LIGHT |
(a) Check which interior illumination does not turn on.
|
Result |
Proceed to |
|---|---|
|
Map light assembly, No. 1 room light assembly or transponder key coil (w/o Smart Key System) does not turn on |
A |
|
Interior foot illumination (w/ Footwell Light), tray illumination (w/ Tray Light) or cup holder illumination (w/ Cup Holder Light) does not turn on |
B |
| B |
|
|
|
2. |
PERFORM ACTIVE TEST USING TECHSTREAM |
(a) Perform the Active Test according to the display on the Techstream.
Click here
![2019 - 2024 MY RAV4 RAV4 HV [11/2018 - ]; LIGHTING (INT): LIGHTING SYSTEM: DATA LIST / ACTIVE TEST](/t3Portal/stylegraphics/info.gif)
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* |
OFF or ON |
Perform the Active Test with the DOOR switch in the map light assembly, No. 1 room light assembly and transponder key coil (w/o Smart Key System) turned on. |
Body Electrical > Main Body > Active Test
|
Tester Display |
|---|
|
Illuminated Entry System |
-
*: Refer to Operation Check for the lights that are controlled by the illuminated entry system.
Click here
OK:
Map light assembly, No. 1 room light assembly and transponder key coil (w/o Smart Key System) turn on or off.
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
|
3. |
CHECK HARNESS AND CONNECTOR (MAP LIGHT ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) |
- *1: for TMMC Made
- *2: for TMC Made
- *3: w/o Smart Key System
(a) Disconnect the P14*1 or P20*2 map light assembly connector.
(b) Disconnect the P15 No. 1 room light assembly connector.
(c) Disconnect the G53 transponder key coil connector.*3
(d) Disconnect the 4D instrument panel junction block assembly connector.
(e) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
for TMC Made
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
P20-1 (CTY) - 4D-29 |
Always |
Below 1 Ω |
|
P20-1 (CTY) or 4D-29 - Body ground |
Always |
10 kΩ or higher |
for TMMC Made
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
P14-18 (CTY) - 4D-29 |
Always |
Below 1 Ω |
|
P14-18 (CTY) or 4D-29 - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
4. |
CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY |
(a) Remove the instrument panel junction block assembly.
Click here
|
*a |
Component without harness connected (Instrument Panel Junction Block Assembly) |
- |
- |
(b) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.
Click here
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
4D-29 - A-1 (ILE) |
Always |
Below 1 Ω |
| OK |
|
| NG |
|
|
5. |
PERFORM ACTIVE TEST USING TECHSTREAM |
(a) Perform the Active Test according to the display on the Techstream.
Click here
Body Electrical > Main Body > Active Test
|
Tester Display |
Measurement Item |
Control Range |
Diagnostic Note |
|---|---|---|---|
|
Fr Foot Light |
Operation of the following lights:
|
OFF or ON |
- |
Body Electrical > Main Body > Active Test
|
Tester Display |
|---|
|
Fr Foot Light |
- *1: w/ Tray Light
- *2: w/ Cup Holder Light
OK:
Connected light is turn on or off.
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
|
|
6. |
CHECK HARNESS AND CONNECTOR (NO. 1 INTERIOR ILLUMINATION LIGHT ASSEMBLY [FOOTWELL LIGHT] - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) |
- *1: w/ Tray Light
- *2: w/ Cup Holder Light
(a) Disconnect the G77 No. 1 interior illumination light assembly (footwell light) connector.
(b) Disconnect the G76 No. 2 interior illumination light assembly (footwell light) connector.
(c) Disconnect the G87 No. 3 interior illumination light assembly (center tray light) connector.*1
(d) Disconnect the G86 No. 4 interior illumination light assembly (driver side tray light) connector.*1
(e) Disconnect the H3 No. 5 interior illumination light assembly (front passenger side tray light) connector.*1
(f) Disconnect the N48 No. 6 interior illumination light assembly (cup holder light) connector.*2
(g) Disconnect the 4A instrument panel junction block assembly connector.
(h) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
4A-37 - G77-1 (L) |
Always |
Below 1 Ω |
|
4A-37 or G77-1 (L) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
7. |
CHECK INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY |
(a) Remove the instrument panel junction block assembly.
Click here
|
*a |
Component without harness connected (Instrument Panel Junction Block Assembly) |
- |
- |
(b) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.
Click here
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
4A-37 - A-26 (FSPT) |
Always |
Below 1 Ω |
| OK |
|
| NG |
|
|
|