Honda Acura NSX 1991 Service Manual page 205

(From page 1 t-28)
Does continuity exist?
N O
Reconnect all the connectors.
Reconnect the "D" connector to
the ECU.
Turn the ignition switch ON.
(-) and the foilowmg: Cl (+) and
Is there battery voltage?
Y E S
Repair short to body ground in
wire between ECU
Y E S
sensor, EGR valve lift sensor
MAP sensor, Ignition timing Ad-
juster and Accelerator Pedal
angle sensor.
Repair open in YELlBLK
between ECU fA25, Cl) and
N O
main relay.
connectors at main relay.
wire
1 l-29