Toyota COMPUTER-CONTROLLED SYSTEM Training Manual page 168

n
CHECKING AND CLEARING DIAGNOSTIC CODE S
CHEC K
ENGINE~
CHECK ~ ~ ~
1 sec
O n
Of f
0 .5 sec 1 .5 se c
Start
4 .5 sec 2 .5
4 .5 se c
, ~
~lnsec
~ ~
Off
OI I2'eC
u u Repea t
Code 12 Code 3 1
One cycl e
SS T
160
(d) Read the diagnostic code as indicated by the
number of flashes of the "CHECK ENGINE" lamp .
DIAGNOSTIC CODE S
(1) Normal code indicatio n
• The lamp will alternately blink on and off 2
times per second .
( 2) Malfunction code indicatio n
As an example, the blinking pa tt erns for codes 12
and 31 are as shown in the illustration at left .
• The lamp will blink the number of times equal
to the malfunction code .
It will go off for a longer period as follows :
ri
Once between the first and second digit of
the same code, 1 .5 seconds .
`2) Once between one code and the next
code, 2 .5 seconds .
3i Once between all malfunction codes, 4 .5
seconds .
NOTE :
• The diagnostic code series will be repeated a s
long as check connector terminals T or TE1 and
E1 are connected .
• In the event of a number of malfunction codes,
indication will begin from the small value and
continue in order to the larger value (s) .
• When the automatic transmission is in the "D",
"2", "L" or "R" range, or when the air condi-
tioner is on, or when the accelerator pedal is
depressed, code "51" (switch condition signal)
will be output, but this is normal .
( e ) After the diagnostic code check, remove the SST
from the check connector or the TDCL .
SST 09843-18020