GENERAL SYSTEM DIAGNOSTICS SERVICE MANUAL NUMBER 23
Page 5E-44 90-861326--1 MARCH 1999
MEFI 3 - J-2 Circuits (continued)
Pin
Circuit
(CKT)
Normal Voltage
Diag-
nostic
Pin
Func-
tion
Num-
ber
(#)
Color
Ignition
ON
Engine
Running
Trouble
Codes
DTC(s)
Symptoms
J2-21
Master/
Slave
916 YEL B+ B+ None
Lack Of Data From Other En-
gine (Dual Engine Only)
J2-22
Diag-
nostic
Test
451
BLK/
WHT
B+ B+ None
Incorrect Idle, Poor Perfor-
mance
J2-24
Discrete
Switch
906
TAN/
WHT
– – NONE
J2-26
TP
Signal
417
DK
BLU
.62V
(NOTE 4)
.62V
(NOTE 4)
21
Poor Performance And Accel-
eration, Incorrect Idle
J2-27
Map
Signal
432
LT
GRN
4.9V
1.46V
(NOTE 3)
33
Poor Performance, Surge, Poor
Fuel Economy, Exhaust Odor
J2-30
IAT
Sensor
472 TAN 5V (NOTE 2) 23
Poor Fuel Economy, Exhaust
Odor
J2-32
Ignition
Fused
439 PNK B+ B+ None No Start
NOTE 1: Battery voltage for first two seconds, then 0 volts.
NOTE 2: Varies with temperature.
NOTE 3: Varies with manifold vacuum.
NOTE 4: Varies with throttle movement.
NOTE 5: Less than .5 volt (500 mV).
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