Toyota Tundra (2015 year). Manual — part 2839
DTC CODE
DETECTION ITEM
TROUBLE AREA
SEE PAGE
C2182/82
Transmitter ID2 not received
Tire pressure warning valve and transmitter
Tire pressure warning antenna and receiver
Wire harness or connector
Tire pressure warning ECU
C2183/83
Transmitter ID3 not received
Tire pressure warning valve and transmitter
Tire pressure warning antenna and receiver
Wire harness or connector
Tire pressure warning ECU
C2184/84
Transmitter ID4 not received
Tire pressure warning valve and transmitter
Tire pressure warning antenna and receiver
Wire harness or connector
Tire pressure warning ECU
C2191/91
Vehicle speed signal error
Combination meter
Wire harness or connector
Vehicle speed signal circuit
Tire pressure warning ECU
TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: TEST...
Last Modified: 9-16-2014
6.6 T
Doc ID: RM000000XMT0BCX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: PROBLEM SYMPTOMS TABLE; 2015 MY Tundra
[08/2014 - ]
PROBLEM SYMPTOMS TABLE
HINT:
SYMPTOM
SUSPECTED AREA
SEE
PAGE
Tire pressure warning light does not illuminate despite tire
pressure decreasing
Check Data List (Tire inflation
pressure)
ID code check (Registration)
Initialization
Tire pressure warning light remains illuminated (goes off during
initial check).
Tire Pressure Warning Light Circuit
ECU Power Source Circuit
Tire pressure warning light remains illuminated (comes on
during initial check).
Check Data List (Tire inflation
pressure)
Tire pressure adjustment
ID code check (Registration)
Initialization
Initialization cannot be done
Tire Pressure Warning Reset Switch
Circuit
DTC check cannot be done
TC and CG Terminal Circuit
ECU Power Source Circuit
TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: PRO...
Last Modified: 9-16-2014
6.6 U
Doc ID: RM0000018KZ038X
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: TERMINALS OF ECU; 2015 MY Tundra [08/2014 -
]
TERMINALS OF ECU
HINT:
Inspect the connectors from the back side.
1. CHECK TIRE PRESSURE WARNING ECU
(a) Disconnect the P17 tire pressure warning antenna and receiver connector.
(b) Measure the voltage according to the value(s) in the table below.
TERMINAL NO.
(SYMBOLS)
WIRING
COLOR
TERMINAL DESCRIPTION
CONDITION
SPECIFIED
CONDITION
J31-12 (RDA) - J31-9
(GND)
G - W-B
Tire pressure warning antenna and
receiver signal
Ignition switch
ON
11 to 14 V
(c) Connect the P17 tire pressure warning antenna and receiver connector.
(d) Measure the voltage and resistance according to the value(s) in the table below.
TERMINAL NO.
(SYMBOLS)
WIRING
COLOR
TERMINAL DESCRIPTION
CONDITION
SPECIFIED
CONDITION
J31-1 (CLSW) -
J31-9 (GND)
B - W-B
Tire pressure warning
reset switch
Ignition switch ON
Tire pressure warning reset switch
OFF
8 to 14 V
Ignition switch ON
Tire pressure warning reset switch
ON
Below 1.5 V
J31-2 (SPD) -
J31-9 (GND)
BR - W-B
Vehicle speed signal
Vehicle is running
Pulse
generation
(see waveform
1)
J31-3 (TC) -
J31-9 (GND)
W - W-B
TC terminal
When terminal TC is not connected
8 to 14 V
TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: TERM...
TERMINAL NO.
(SYMBOLS)
WIRING
COLOR
TERMINAL DESCRIPTION
CONDITION
SPECIFIED
CONDITION
J31-5 (IND) -
J31-9 (GND)
LG - W-B
Tire pressure warning light
output signal
After ignition switch is turned ON,
when tire pressure warning light
illuminates for 3 seconds
2.2 to 4.4 V
Ignition switch ON
Tire pressure warning light off
Below 0.5 V
J31-6 (RF5V) -
J31-9 (GND)
Y - W-B
Tire pressure warning
antenna and receiver
power source
Ignition switch ON
11 to 14 V
J31-7 (IG) -
J31-9 (GND)
P - W-B
IG power source
Ignition switch ON
11 to 14 V
J31-9 (GND) -
Body ground
W-B -
Body
ground
Ground
Always
Below 1 Ω
J31-10 (SIL) -
J31-9 (GND)
SB - W-B
Diagnosis tester
communication line
Ignition switch ON, when
communication is not performed
with a tester
8 to 14 V
J31-11 (GND2)
- J31-9 (GND)
P - W-B
Tire pressure warning
antenna and receiver
ground
Always
Below 1 Ω
If the result is not as specified, the ECU may have a malfunction.
(e) Using an oscilloscope, check the waveform 1.
ITEM
CONTENTS
Terminal No.
(Symbols)
J31-2 (SPD) - J31-9 (GND)
Tool Setting
5 V/DIV., 200 ms/DIV.
Vehicle Condition
While driving at approximately 20 km/h (12
mph).
TIRE AND WHEEL: TIRE PRESSURE WARNING SYSTEM: TERM...
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