Toyota COMPUTER-CONTROLLED SYSTEM Training Manual page 149

DIAGNOSIS -
OBD-I[
(On-Board Diagnostic System )
Conventional OBD
New OBD (OBD-I[ )
CHECK
CHECK W E1 OX1 CC2 IG-
TE1
E l
CONNECTOR
CONNECTOR
TEl
O
(DLC) AND
(DLC 1 )
TER MINAL
tM
FP
D
(Only those
C C
related to the
+B
lJ
CD
Engine
ECU)
VF1 VF2TE2OX2 TT + B
TDCL
ECT W
(DLC2)
EN G
TT
E1 TE2 TE1
E l
DLC3
BATT SDL* '
?CG* 3
SDL ; The communication terminal between the Engine ECU and the TOYOTA hand-held tester use the VPW
(Variable Pulse Width) system in accordance with the SAE J1850 requirements .
*zSG ; Signal graund
*3CG ; Chassis graund