Toyota Tundra 2005 Service - Repair - Maintenance page 1142

5 Inspect ECM (air voltage).
Pressure Gauge
OK
6 Check connection of all air injection system piping and hoses.
OK
DIAGNOSTICS
PREPARATION:
Pressure Sensor
(a)
(b)
(c)
(d)
(e)
B17434
CHECK:
Check that the pressure displayed on the hand−held tester fluc-
tuates when applying the pressure to the pressure sensor with
the pressure gauge.
OK:
CHECK:
(a)
(b)
OK:
CHECK:
(a)
B17436
OK:
− ENGINE (2UZ−FE)
Remove the intake manifold (see page EM−36).
Connect the pressure gauge to the pressure sensor as
shown in the illustration.
Connect the hand−held tester to the DLC3 on the vehicle.
Turn the ignition switch ON and push the hand−held tes-
ter main switch ON (Do not start engine).
Select the following items: DIAGNOSIS / ENHANCED
OBD II / DATA LIST / AIR PUMP PRS.
Pressure fluctuates in response to the pressure ap-
plied with pressure gauge.
NG Replace pressure sensor.
Remove the intake manifold (see page EM−36).
Check that all the pipes and hoses between the air pump
and air switching valve are securely connected.
The all air injection pipes and hoses are securely con-
nected.
Check the pipe and hoses for blockage or damage.
The air injection system pipes and hoses has no
blockages and damages.
NG Repair or replace air injection system piping.
DI−857