Toyota T100 1996 Service Manual page 675

Normal Code
0.25 sec.
0.25 sec.
ON
OFF
Malfunction codes 11 and 21
0.5 sec.
1.5 sec.
4 sec. 2.5 sec.
ON
OFF
Code 11
BE4032
BE4033
TOYOTA hand−held tester
TOYOTA Break−out−box
1996 TOYOTA T100 (RM449U)
DIAGNOSTICS
HINT:
S
S
0.5 sec.
1.5 sec.
Code 21
I00021
2.
(a)
(b)
HINT:
TOYOTA hand−held tester has a "Snapshot" function. This re-
N09348
cords the measured values and is effective in the diagnosis of
intermittent problems.
Please refer to the TOYOTA hand−held tester /TOYOTA
break−out−box operator's manual for further details.
3.
ECU−B Fuse
(a)
(b)
N06038
− CRUISE CONTROL SYSTEM
If the DTC is not output, inspect the Tc circuit (See page
DI−456).
As an example, the blinking patterns for codes; normal,
11 and 21 are shown in the illustration.
ECU TERMINAL VALUES MEASUREMENT BY USING
TOYOTA BREAK−OUT−BOX AND TOYOTA HAND−
HELD TESTER
Hook up the TOYOTA break−out−box and TOYOTA
hand−held tester to the vehicle.
Read the ECU input/output values by following the
prompts on the tester screen.
DTC CLEARANCE
After completing repairs, the diagnostic trouble code re-
tained in memory can be cleared by removing the ECU−B
fuse for 10 seconds or more, with the ignition switch OFF.
Check that the normal code is displayed after connecting
the fuse.
DI−411