Toyota Tundra (2015 year). Manual — part 2737
Last Modified: 9-16-2014
6.6 T
Doc ID: RM000001RSR02WX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: MULTIPLEX COMMUNICATION: LIN COMMUNICATION SYSTEM: PROBLEM SYMPTOMS TABLE; 2015 MY
Tundra [08/2014 - ]
PROBLEM SYMPTOMS TABLE
HINT:
SYMPTOM
SUSPECTED AREA
SEE PAGE
Air Conditioning Control Assembly Communication Error
LIN communication line
Air conditioning amplifier assembly
Air conditioning control assembly
Harness or connector
MULTIPLEX COMMUNICATION: LIN COMMUNICATION SYSTEM:...
Last Modified: 9-16-2014
6.6 U
Doc ID: RM000002S8903SX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: MULTIPLEX COMMUNICATION: LIN COMMUNICATION SYSTEM: TERMINALS OF ECU; 2015 MY Tundra
[08/2014 - ]
TERMINALS OF ECU
1. CHECK MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK)
MULTIPLEX COMMUNICATION: LIN COMMUNICATION SYSTEM:...
(a) Disconnect the DA and DB main body ECU (driver side junction block) connectors.
(b) Measure the voltage and resistance according to the value(s) in the table below.
TERMINAL NO. (SYMBOLS)
WIRING COLOR TERMINAL DESCRIPTION CONDITION SPECIFIED CONDITION
DA-1 (ACC) - Body ground
B - Body ground
ACC power supply
Always
11 to 14 V
DA-1 (IG) - Body ground
B - Body ground
IG power supply
Always
11 to 14 V
DB-21 (GND1) - Body ground B - Body ground
Body ground
Always
Below 1 Ω
DB-21 (GND2) - Body ground B - Body ground
Body ground
Always
Below 1 Ω
If the result is not as specified, there may be a malfunction on the wire harness side.
2. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (for Power Window
Control System [w/ Jam Protection Function])
(a) Disconnect the N2 power window regulator master switch assembly connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.
TERMINAL NO. (SYMBOLS)
WIRING COLOR
TERMINAL DESCRIPTION CONDITION SPECIFIED CONDITION
N2-3 (B) - N2-1 (E)
L - W-B
Battery power supply
Always
11 to 14 V
N2-1 (E) - Body ground
W-B - Body ground Ground
Always
Below 1 Ω
If the result is not as specified, there may be a malfunction on the wire harness side.
3. CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for Power Window
Control System [w/ Jam Protection Function])
(a) Disconnect the N12 front power window regulator motor assembly LH connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.
TERMINAL NO. (SYMBOLS)
WIRING COLOR
TERMINAL DESCRIPTION CONDITION SPECIFIED CONDITION
MULTIPLEX COMMUNICATION: LIN COMMUNICATION SYSTEM:...
TERMINAL NO. (SYMBOLS)
WIRING COLOR
TERMINAL DESCRIPTION CONDITION SPECIFIED CONDITION
N12-2 (B) - N12-1 (GND)
G - W-B
Battery power supply
Always
11 to 14 V
N12-1 (GND) - Body ground W-B - Body ground Ground
Always
Below 1 Ω
If the result is not as specified, there may be a malfunction on the wire harness side.
4. CHECK FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH (for Power Window
Control System [w/ Jam Protection Function])
(a) Disconnect the M11 front power window regulator motor assembly RH connector.
(b) Measure the voltage and resistance according to the value(s) in the table below.
TERMINAL NO. (SYMBOLS)
WIRING COLOR
TERMINAL DESCRIPTION CONDITION SPECIFIED CONDITION
M11-2 (B) - M11-1 (GND)
V - W-B
Battery power supply
Always
11 to 14 V
M11-1 (GND) - Body ground W-B - Body ground Ground
Always
Below 1 Ω
If the result is not as specified, there may be a malfunction on the wire harness side.
5. CHECK SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY (SLIDING ROOF ECU) (w/ Sliding
(b) Measure the voltage and resistance according to the value(s) in the table below.
TERMINAL NO.
(SYMBOLS)
WIRING COLOR
TERMINAL
DESCRIPTION
CONDITION
SPECIFIED
CONDITION
W3-9 (IG) - Body ground SB - Body ground IG power supply
Ignition switch ON 11 to 14 V
Ignition switch
OFF
Below 1 V
W3-10 (B) - Body ground L - Body ground
+B power supply
Always
11 to 14 V
MULTIPLEX COMMUNICATION: LIN COMMUNICATION SYSTEM:...
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