Toyota Tundra 2005 Service - Repair - Maintenance page 1099

DI−814
CONFIRMATION DRIVING PATTERN
HINT:
This confirmation driving pattern is used in steps 2, 4, 7, 17 and 21 of the following diagnostic troubleshooting
procedure when using a hand−held tester.
75_C (167_F) or higher
ECT:
Vehicle Speed
40 mph (64 km/h)
Idling
IG SW OFF
(a) Connect the hand−held tester to DLC3.
(b) Turn the ignition switch to ON and turn the tester ON.
(c) Clear DTCs (see page DI−462).
(d) Start the engine, and warm it up until the ECT reaches 75_C (167_F) or higher.
(e) On the hand−held tester, select the following menu items: DIAGNOSIS/ENHANCED OBD II/DATA
LIST/FC IDL.
(f) Drive the vehicle at 40 mph (64 km/h) or more for at least 10 minutes.
(g) Change the transmission to 2nd gear.
(h) Drive the vehicle at an appropriate speed to perform fuel−cut operation.
HINT:
Fuel−cut is performed when the following conditions met:
S
Accelerator pedal is fully released.
S
Engine speed is 2,500 rpm or more (fuel injection returns at 1,000 rpm).
(i) Accelerate the vehicle to 30 mph (48 km/h) or more by depressing the accelerator pedal for at least
10 seconds.
(j) Soon after performing step (8) above, release the accelerator pedal for at least 4 seconds without de-
pressing the brake pedal, in order to execute fuel−cut control.
(k) Stop the vehicle and allow the engine to idle for 10 seconds or more.
(l) Allow the vehicle to decelerate until the vehicle speed declines to less than 6 mph (10 km/h).
(m) Repeat steps from (8) through (10) above at least 3 times in one driving cycle.
HINT:
Completing all A/F sensor monitors are required to change the value in TEST RESULT.
CAUTION:
Strictly observe the posted speed limits, traffic laws, and road conditions when performing these
driving patterns.
DIAGNOSTICS
(d)
Warming up
− ENGINE (2UZ−FE)
Accelerator Pedal
Depressed
(f)
(g)
10 minutes
or more
Accelerator Pedal
Released (Fuel−cut)
At Least 3 times
(h) (i)
(j)
4 seconds
10 seconds
or more
or more
Time
A23662