SERVICE MANUAL NUMBER 23
GENERAL SYSTEM DIAGNOSTICS
MEFI 1 - 454/502 Mag MPI and 8.2L MPI Symptom Chart (J-1 Circuits)
(Continued)
Circuit
(CKT)
Function Number Color Ignition
(#)
439
–
Normal Voltage
Diagnostic
Trouble
Codes
Pin
Wire
Possible
Symptoms
Pin
Engine
ON
B+
–
Running
DTC(s)
Ignition
Fused
PNK/
BLK
J1-11
B+
–
None
–
No Start
–
J1-12 Not Used
–
High Idle,
Rough Idle,
Poor
Performance
Exhaust
Odor
TP and
IAT
Ground
0
(NOTE 5) (NOTE 5)
0
J1-13
J1-14
813
BLK
21,23
ECM
Ground
BLK/
WHT
0
(NOTE 5) (NOTE 5)
0
450
416
None
21
No Start
TP 5V
Refer-
ence
Lack Of
Power, Idle
High
J1-15
J1-16
GRY
5V
5V
Battery
440
–
ORN
–
B+
–
B+
–
None
–
No Start
–
J1-17 Not Used
No Serial
Data
(NOTE 6)
Serial
J1-18
ORN/
BLK
461
5V
5V
None
Data
J1-19 Not Used
J1-20 Not Used
Lanyard
–
–
–
–
–
–
–
–
–
–
–
–
J1-21
Stop
942
PNK
0
0
None
No Start
Switch
J1-22 Not Used
J1-23 Not Used
–
–
–
–
–
–
–
–
–
–
–
–
Poor Fuel
Economy,
Exhaust
Odor
IAT Sen-
J1-24
sor
472
TAN
5V
(NOTE 2)
23
J1-25 Not Used
J1-26 Not Used
J1-27 Not Used
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
Index
90-861326--1
MARCH 1999
Page 5E-11
| 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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