DESCRIPTION
The main body ECU (multiplex network body ECU) receives a cargo light information signal from the deck light switch assembly and door courtesy light switch, and illuminates the cargo light.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
PERFORM ACTIVE TEST USING TECHSTREAM (CARGO LIGHT) |
(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 / Active Test.
(e) Perform the Active Test according to the display on the Techstream.
Main Body ECU
Tester Display |
Test Part |
Control Range |
Diagnostic Note |
---|---|---|---|
Cargo Light |
Cargo light |
ON or OFF |
Deck light switch assembly is DOOR or on |
OK:
Cargo light turns on / turns off.
OK |
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE |
|
2. |
INSPECT CARGO RELAY |
(a) Remove the CARGO relay from the junction block assembly.
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
NG |
REPLACE CARGO RELAY |
|
3. |
CHECK HARNESS AND CONNECTOR (CARGO FUSE - CARGO RELAY) |
(a) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
Relay terminal 1- Body ground |
Always |
11 to 14 V |
Relay terminal 3- Body ground |
Always |
11 to 14 V |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
CHECK HARNESS AND CONNECTOR (CARGO RELAY - CENTER STOP LIGHT ASSEMBLY (CARGO LIGHT)) |
(a) Disconnect the C15 cargo light connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
Relay terminal 5 - C15-3 (DL) |
Always |
Below 1 Ω |
Relay terminal 3 - Body ground |
Always |
10 kΩ or higher |
C15-1 (E) - Body ground |
Always |
Below 1 Ω |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
5. |
INSPECT CARGO LIGHT |
(a) Remove the cargo light (See page ).
(b) Inspect the cargo light (See page ).
NG |
REPLACE CARGO LIGHT |
|
6. |
INSPECT DECK LIGHT SWITCH ASSEMBLY |
(a) Remove the deck light switch assembly (See page ).
(b) Inspect the deck light switch assembly (See page ).
NG |
REPLACE DECK LIGHT SWITCH ASSEMBLY |
|
7. |
CHECK HARNESS AND CONNECTOR (DECK LIGHT SWITCH ASSEMBLY - CARGO RELAY AND BODY GROUND) |
(a) Disconnect the D35 deck light switch assembly connector.
(b) Remove the CARGO relay from the junction block assembly.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
D35-5 (CCTY) - Relay terminal 2 |
Always |
Below 1 Ω |
D35-5 (CCTY) - Body ground |
Always |
10 kΩ or higher |
D35-7 (E) - Body ground |
Always |
Below 1 Ω |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
8. |
CHECK HARNESS AND CONNECTOR (DECK LIGHT SWITCH ASSEMBLY - DRIVER SIDE JUNCTION BLOCK AND MAIN BODY ECU) |
(a) Disconnect the D35 deck light switch assembly connector.
(b) Disconnect the 1A driver side junction block connector.
(c) Disconnect the M6 main body ECU (multiplex network body ECU) connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
D35-9 (CGON) - 1A-40 |
Always |
Below 1 Ω |
D35-9 (CGON) - Body ground |
Always |
10 kΩ or higher |
D35-10 (CGLP) - M6-23 (CGSW) |
Always |
Below 1 Ω |
D35-10 (CGLP) - Body ground |
Always |
10 kΩ or higher |
NG |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
9. |
INSPECT DRIVER SIDE JUNCTION BLOCK |
(a) Remove the driver side junction block (See page ).
(b) Remove the main body ECU (multiplex network body ECU) from the driver side junction block. |
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
1A-40 - MB-27 (CGLP) |
Always |
Below 1 Ω |
*a |
Component without harness connected (Driver Side Junction Block) |
OK |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
NG |
REPLACE DRIVER SIDE JUNCTION BLOCK |
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COMPONENTS
ILLUSTRATION
Disassembly
DISASSEMBLY
PROCEDURE
1. REMOVE BUSH
(a) Fix the spring in a vise.
(b) Using a hack saw, cut both ends off the bushes.
(c) Using SST and a press, press out the 2 bushes.
SST: 09950-60010
09951-00350
SST: 09950-70010
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