Toyota Tundra (2015 year). Manual — part 2214
OK
(a) Remove the defogger relay (DEFOG) from the engine room
relay block, junction block.
(b) Disconnect the J19 air conditioning amplifier connector.
(c) Measure the voltage according to the value(s) in the table
below.
Standard voltage:
TESTER CONNECTION
CONDITION
SPECIFIED
CONDITION
Defogger relay (DEFOG) terminal
2 - Body ground
Ignition switch
ON
11 to 14 V
Ignition switch
OFF
Below 1 V
Defogger relay (DEFOG) terminal
5 - Body ground
Always
11 to 14 V
(d) Measure the resistance according to the value(s) in the table
below.
Standard resistance:
TESTER CONNECTION
CONDITION
SPECIFIED
CONDITION
Defogger relay (DEFOG) terminal 1 -
J19-38 (RDEF)
Always
Below 1 Ω
Defogger relay (DEFOG) terminal 1 or
J19-38 (RDEF) - Body ground
Always
10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
6.
CHECK HARNESS AND CONNECTOR (DEFOGGER WIRE - DEFOGGER RELAY AND BODY
GROUND)
WINDSHIELD / WINDOWGLASS: WINDOW DEFOGGER SYSTEM...
OK
(a) Disconnect the P9 and P10 rear window glass (defogger wire) connectors.
(b) Remove the defogger relay (DEFOG) from the engine room relay block, junction block.
(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
P9-1 (B) - Defogger relay (DEFOG) terminal 3
Always
Below 1 Ω
P10-1 (E) - Body ground
Always
Below 1 Ω
Defogger relay (DEFOG) terminal 4 - Body ground
Always
Below 1 Ω
P9-1 (B) or Defogger relay (DEFOG) terminal 3 - Body ground
Always
10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
7.
CHECK BACK WINDOW GLASS (DEFOGGER WIRE)
(a) Perform the on-vehicle inspection, check that the window defogger system operates normally
.
OK:
Malfunction disappears.
NG
REPAIR DEFOGGER WIRE
OK
REPLACE AIR CONDITIONING AMPLIFIER
WINDSHIELD / WINDOWGLASS: WINDOW DEFOGGER SYSTEM...
Last Modified: 9-16-2014
6.6 G
Doc ID: RM000001L64059X
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: WINDSHIELD / WINDOWGLASS: WINDOW DEFOGGER WIRE (for CrewMax): ON-VEHICLE INSPECTION;
2015 MY Tundra [08/2014 - ]
ON-VEHICLE INSPECTION
1. INSPECT BACK WINDOW GLASS (DEFOGGER WIRE)
NOTICE:
(b) Turn the defogger switch on.
VOLTAGE
CRITERIA
Approx. 5 V
Wire is not broken
Approx. 10 or 0 V
Wire is broken
WINDSHIELD / WINDOWGLASS: WINDOW DEFOGGER WIRE (fo...
HINT:
(d) Place the voltmeter's positive (+) lead against the defogger wire on the battery side.
(e) Place the voltmeter's negative (-) lead with the foil strip against the wire on the ground side.
(f) Slide the positive (+) lead from the battery side to the ground side.
(g) The point where the voltage drops from approximately 10 V to 0 V is where the defogger wire is broken.
HINT:
WINDSHIELD / WINDOWGLASS: WINDOW DEFOGGER WIRE (fo...
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