GENERAL SYSTEM DIAGNOSTICS
SERVICE MANUAL NUMBER 23
MEFI 1 - 454/502 Mag MPI and 8.2L MPI Symptom Chart (J-2 Circuits)
(Continued)
Circuit
(CKT)
Function Number Color Ignition
Normal Voltage
Diagnostic
Trouble
Codes
Pin
Wire
Possible
Symptoms
Pin
Engine
(#)
ON
Running
DTC(s)
Port Fuel
Jumper
J2-22
901
WHT
WHT
–
–
–
–
Stall, Will
Restart In
Bypass
Ignition
Control
Signal
0
J2-23
423
1.2V
42
(NOTE 5)
Mode, Lack
Of Power
Ignition
Control
Bypass
Lack Of
Power,
Fixed Timing
0
TAN/
BLK
J2-24
424
4.5V
42
(NOTE 5)
J2-25 Not Used
J2-26 Not Used
Discrete
–
–
–
–
–
–
–
–
–
–
–
–
Audio Warn-
ing System
Activated
J2-27
J2-28
J2-29
Switch
Signal
31
TAN
–
–
–
Rough Un-
stable or In-
correct Idle
IAC “A”
High
BLU/
WHT
Not
Usable
Not
Usable
441
444
None
None
Rough Un-
stable or In-
correct Idle
IAC “B”
Low
GRN/
BLK
Not
Usable
Not
Usable
J2-30 Not Used
–
419
–
–
–
0
–
0
–
None
–
–
MIL
J2-31
BRN/
WHT
Lamp Inop-
erative
Lamp
(NOTE 5) (NOTE 5)
J2-32 Not Used
–
–
–
–
Index
Page 5E-14
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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