Copyright © 1998 General Motors Corp. D–15
WTEC II ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL
APPENDIX D — WIRE/CONNECTOR CHART
Figure D–11. Diagnostic Connector
DIAGNOSTIC CONNECTOR
Terminal No.
Color Wire No. Description Termination Point(s)
A Black 143 Battery (–) ECU, B18; VIM Conn, A2
H* Yellow 146B Ignition Signal ECU, B12; VIM Conn, F1
H** Red 136D Battery (+) ECU, B12; VIM Conn, F1
J White 142 Serial Communication (+) ECU, B8; VIW (Amp), 6
K Blue 151 Serial Communication (–) ECU, B17; VIW (Amp), 7
V00644.01
GF
HE
JD
KC
LB
MA
* After 9/93
** Prior to 9/93
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