Toyota Tundra (2015 year). Manual — part 2781
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J47-11 (GND) - Body ground
Always
Below 1 Ω
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE MULTIPLEX TILT AND TELESCOPIC ECU
STEERING COLUMN: POWER TILT AND POWER TELESCOPIC ...
Last Modified: 9-16-2014
6.6 C
Doc ID: RM000000XZB06BX
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: STEERING COLUMN: POWER TILT AND POWER TELESCOPIC STEERING COLUMN SYSTEM: B2620; ECU
Power Source Circuit Malfunction; 2015 MY Tundra [08/2014 - ]
DTC
B2620
ECU Power Source Circuit Malfunction
DESCRIPTION
The ECU power source circuit supplies positive voltage to the multiplex tilt and telescopic ECU.
DTC
CODE
DETECTION CONDITION
TROUBLE AREA
B2620
While the auto away/return function, driving position memory function or
manual control is in operation, the ECU power supply voltage remains at
Harness or
connector
Multiplex tilt
and telescopic
ECU
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1.
INSPECT FUSE (ECU-B1)
STEERING COLUMN: POWER TILT AND POWER TELESCOPIC ...
OK
OK
(a) Remove the ECU-B1 fuse from the engine room junction block.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
ECU-B1 fuse
Always
Below 1 Ω
NG
REPLACE FUSE
2.
CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU -
BATTERY)
(a) Disconnect the J47 multiplex tilt and telescopic ECU
connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J47-9 (ECUB) - Body ground
Always
11 to 14 V
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
STEERING COLUMN: POWER TILT AND POWER TELESCOPIC ...
3.
CHECK HARNESS AND CONNECTOR (MULTIPLEX TILT AND TELESCOPIC ECU - BODY
GROUND)
(a) Measure the resistance according to the value(s) in the table
below.
Standard Resistance:
TESTER CONNECTION
CONDITION
SPECIFIED CONDITION
J47-11 (GND) - Body ground
Always
Below 1 Ω
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE MULTIPLEX TILT AND TELESCOPIC ECU
STEERING COLUMN: POWER TILT AND POWER TELESCOPIC ...
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