GENERAL SYSTEM DIAGNOSTICS
SERVICE MANUAL NUMBER 23
MEFI 3 - J-2 Circuits (continued)
Circuit
Diag-
nostic
Trouble
Codes
DTC(s)
Normal Voltage
Pin
Func-
tion
(CKT)
Num-
ber
Wire
Color
Possible
Symptoms
Pin
Ignition
ON
Engine
Running
(#)
Master/
Slave
Lack Of Data From Other En-
gine (Dual Engine Only)
J2-21
J2-22
916
451
YEL
B+
B+
–
B+
B+
–
None
None
Diag-
nostic
Test
BLK/
WHT
Incorrect Idle, Poor Perfor-
mance
Discrete
Switch
TAN/
WHT
J2-24
J2-26
J2-27
J2-30
J2-32
906
417
432
472
439
NONE
21
TP
Signal
DK
BLU
.62V
(NOTE 4)
.62V
(NOTE 4)
Poor Performance And Accel-
eration, Incorrect Idle
Map
Signal
LT
GRN
1.46V
(NOTE 3)
Poor Performance, Surge, Poor
Fuel Economy, Exhaust Odor
4.9V
5V
33
IAT
Sensor
Poor Fuel Economy, Exhaust
Odor
TAN
PNK
(NOTE 2)
23
Ignition
Fused
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).
Index
Page 5E-44
90-861326--1 MARCH 1999
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1998, 1999, 2000, 2001 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
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