Toyota Camry (XV70): Rear Door Courtesy Switch Circuit
DESCRIPTION
The main body ECU (multiplex network body ECU) detects the condition of the rear door courtesy light switch assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.*
Click here .gif)
- *: w/ Smart Key System
PROCEDURE
|
1. | READ VALUE USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body / Data List.
(e) 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 |
OFF or ON | OFF: Rear door RH closed ON: Rear door RH open |
- |
| RL Door Courtesy SW |
Rear door courtesy light switch assembly LH signal |
OFF or ON | OFF: Rear door LH closed ON: Rear door LH open |
- |
|
Tester Display |
|---|
| RR Door Courtesy SW |
|
RL Door Courtesy SW |
OK:
Normal conditions listed above are displayed.
|
Result | Proceed to |
|---|---|
|
OK | A |
|
"RR Door Courtesy SW" is not normal |
B |
| "RL Door Courtesy SW" is not normal |
C |
| A |
.gif) | PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
|
| C |
| GO TO STEP 5 |
|
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| 2. |
INSPECT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY RH |
(a) Remove the rear door courtesy light switch assembly RH.
Click here
(b) Inspect the rear door courtesy light switch assembly RH.
Click here
| NG | | REPLACE REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY RH
|
|
| 3. |
CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY RH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) |
(a) Disconnect the 3A instrument panel junction block assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
R6-1 - 3A-31 | Always |
Below 1 ? |
|
R6-1 or 3A-31 - Body ground |
Always | 10 k? or higher |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 4. |
INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY |
|
*a | Component without harness connected (Instrument Panel Junction Block Assembly) |
- | - |
(a) Remove the instrument panel junction block assembly.
Click here
(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 |
|---|---|---|
|
3A-31 - MB-2 (RCTY) | Always |
Below 1 ? |
| OK | | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
| NG | | REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
|
| 5. |
INSPECT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LH |
(a) Remove the rear door courtesy light switch assembly LH.
Click here
(b) Inspect the rear door courtesy light switch assembly LH.
Click here
| NG | | REPLACE REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LH
|
|
| 6. |
CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY LH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY) |
(a) Disconnect the 3D instrument panel junction block assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
R7-1 - 3D-24 | Always |
Below 1 ? |
|
R7-1 or 3D-24 - Body ground |
Always | 10 k? or higher |
| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
| 7. |
INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY |
|
*a | Component without harness connected (Instrument Panel Junction Block Assembly) |
- | - |
(a) Remove the instrument panel junction block assembly.
Click here
(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 |
|---|---|---|
|
3D-24 - MB-13 (LCTY) |
Always | Below 1 ? |
| OK | | REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
| NG | | REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
|
READ NEXT:
SEE MORE:
Parts Location
PARTS LOCATION ILLUSTRATION
*1 FUEL LID LOCK WITH MOTOR ASSEMBLY
*2 FUEL LID OPENER SWITCH
*3 INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
- FUEL OPN RELAY
*4 NO. 1 ENGINE ROOM RELAY BLOCK AND NO. 1 JUNCTION BLOCK ASSEMBLY
- FUEL OPN FUSE
*5
Components
COMPONENTS ILLUSTRATION
*A for A25A-FKS
*B for 2GR-FKS
*1 FRONT WHEEL OPENING EXTENSION PAD LH
*2 FRONT WHEEL OPENING EXTENSION PAD RH
*3 NO. 1 ENGINE UNDER COVER
*4 NO. 2 ENGINE UNDER COVER ASSEMBLY
*5 REAR ENGINE UNDER COVE
