No DLC Data or Will Not Flash Code 12
Chart A-2: (2 of 2)
•
•
MARINE DIAGNOSTIC CODE TOOL INSTALLED.
IGNITION “ON,” ENGINE “OFF.”
IS THE “MALFUNCTION INDICATOR LIGHT “ON”?
YES
NO
•
ENTER SERVICE MODE ON DIAGNOSTIC
CODE TOOL.
SEE
CHART A-1
DOES “MALFUNCTION INDICATOR LAMP”
FLASH CODE 12?
NO
YES
IF PROBLEM WAS NO DLC DATA (USING SCAN TOOL)
CHECK SERIAL DATA CKT 461 FOR OPENS OR SHORTS
TO GROUND. IF OK, IT IS A FAULTY ECM.
2
3
4
1
•
•
•
•
IGNITION “OFF.”
DISCONNECT ECM J-2 CONNECTOR.
IGNITION “ON” AND NOTE “MALFUNCTION INDICATOR
LAMP”
LIGHT “OFF”
LIGHT “ON”
•
•
•
IGNITION “OFF.”
REPAIR SHORT TO
GROUND IN CKT 419.
JUMPER TERMINALS “A” TO “B” AT DLC CONNECTOR.
CONNECT TEST LIGHT BETWEEN ECM CONNECTOR
TERMINAL “J1-7” AND B+ BATTERY POSITIVE.
LIGHT “ON”
LIGHT “OFF”
•
•
REPLACE ECM.
RECHECK FOR CODE 12.
•
CHECK FOR OPEN IN DLC DIAGNOSTIC
TERMINALS “A” AND “B” (CKT 450 AND
CKT 451), REPAIR AS NECESSARY.
Index
90-823224--2 796
ELECTRONIC FUEL INJECTION (MULTI-PORT AND THROTTLE BODY) - 5C-55
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1993, 1994, 1995, 1996, 1997 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(4 votes, average: 4.5 out of 5)
Marine readers have rated 1993 1997 Mercury-MerCruiser GM V8 454 CID 7.4L and 502 CID 8.2L Marine Engines Service Manual Number 16 4.5 out of 5.0 based on 4 product reviews. Hugely helpful service manual! Perfect. Thank you!
Manuals are all Important for Technician
This book is invaluable if you do your own repairs. Great book.
Could not find a copy until a search brought me here.
Excellent print.
Thank you