Toyota Tundra (2015 year). Manual — part 2108
INSPECTION PROCEDURE
HINT:
Inspect the bulbs for circuits related to this system before performing the following inspection procedure.
PROCEDURE
1.
INSPECT FUSE (CARGO)
LIGHTING: LIGHTING SYSTEM: Cargo Light Circuit; 2015 MY Tund...
OK
(a) Remove the CARGO LP fuse from the main body ECU.
(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
CARGO LP fuse
Always
Below 1 Ω
NG
REPLACE FUSE
2.
PERFORM ACTIVE TEST USING TECHSTREAM (CARGO LIGHT)
(a) Operate the Techstream according to the steps on the display and select "Active Test".
Main Body ECU
TESTER DISPLAY
TEST PART
CONTROL RANGE
DIAGNOSTIC NOTE
Cargo Light
Cargo light
ON or OFF
Cargo light switch is DOOR or on
OK:
Cargo light turns on / turns off.
NG
GO TO STEP 3
OK
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN
IN PROBLEM SYMPTOMS TABLE
3.
READ VALUE USING TECHSTREAM (CARGO LIGHT SWITCH)
(a) Operate the Techstream according to the display and select the "Data List".
Main Body ECU
TESTER DISPLAY
MEASUREMENT ITEM/RANGE
NORMAL CONDITION
DIAGNOSTIC NOTE
Cargo Light Switch
Cargo light switch signal / ON or OFF
ON: Cargo light switch on
OFF: Cargo light switch off
-
OK:
When cargo light switch operation is performed, the results are the same as above.
NG
GO TO STEP 5
LIGHTING: LIGHTING SYSTEM: Cargo Light Circuit; 2015 MY Tund...
OK
4.
CHECK HARNESS AND CONNECTOR (CARGO LIGHT - BATTERY AND BODY GROUND)
(a) Disconnect the P8 light connector.
(b) Measure the voltage according to the value(s) in the table
below.
Standard voltage:
TESTER
CONNECTION
SWITCH CONDITION
SPECIFIED
CONDITION
P8-3 (DL) - Body
ground
Cargo light switch ON
11 to 14 V
Cargo light switch DOOR,
door is open
Cargo light switch OFF
Below 1 V
(c) Measure the resistance according to the value(s) in the table
below.
Standard resistance:
TESTER CONNECTION
SWITCH
CONDITION
SPECIFIED
CONDITION
P8-1 (E) - Body
ground
Always
Below 1 Ω
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE MAIN BODY ECU
5.
INSPECT CARGO LIGHT SWITCH
LIGHTING: LIGHTING SYSTEM: Cargo Light Circuit; 2015 MY Tund...
OK
(a) Remove the cargo light switch
.
(b) Measure the resistance according to the value(s) in the table
below.
Standard resistance:
TESTER
CONNECTION
SWITCH CONDITION
SPECIFIED
CONDITION
5 (CCTY) - 9 (CGON)
Cargo light switch ON
Below 1 Ω
Cargo light switch
DOOR
Cargo light switch OFF
10 kΩ or higher
10 (CGLP) - 7 (E)
Cargo light switch ON
Below 1 Ω
Cargo light switch
DOOR
10 kΩ or higher
Cargo light switch OFF
NG
REPLACE CARGO LIGHT SWITCH
6.
CHECK HARNESS AND CONNECTOR (CARGO LIGHT SWITCH - MAIN BODY ECU)
(a) Disconnect the J50 cargo light switch connector.
(b) Disconnect the DD ECU connector.
(c) Measure the resistance according to the value(s) in the table below.
LIGHTING: LIGHTING SYSTEM: Cargo Light Circuit; 2015 MY Tund...
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