ELECTRONIC FUEL INJECTION (MULTI-PORT AND THROTTLE BODY) - 5E-95
90-823225--1 1096
Code 42: IC Circuit (Non-Scan) (2 of 2)
DIAGNOSTIC AIDS:
An intermittent problem may be caused by a poor or
corroded connection, rubbed through wire connec-
tion, a wire that is broken inside the insulation, or a
corroded wire.
Any circuitry that is suspected as causing the inter-
mittent complaint should be thoroughly checked for
backed-out terminals, improper mating, broken
locks, improperly formed or damaged terminals, poor
terminal-to-wiring connections, corroded terminals
and/or wiring, or physical damage to the wiring har-
ness. After repairs, clear codes following “Clearing
Codes” in “ECM Self-Diagnostics.” Failure to do so
may result in codes not properly being cleared.
00000
LIGHT “OFF”
CODE 42
NO CODE 42
•
DISCONNECT IGNITION MODULE 4-WAY
CONNECTOR.
1
3
•
WITH OHMMETER STILL CONNECTED TO ECM HARNESS
CKT 423 AND GROUND, AGAIN PROBE ECM HARNESS
CKT 424 WITH THE TEST LIGHT CONNECTED TO 12
VOLTS. AS TEST LIGHT CONTACTS CKT 424,
RESISTANCE SHOULD SWITCH FROM OVER 3K
Ω
TO
UNDER 1K
Ω
OHMS.
DOES IT?
•
INSTALL MARINE DIAGNOSTIC CODE TOOL.
•
CLEAR CODES (REFER TO CLEARING CODES).
•
IDLE ENGINE FOR 1 MINUTE OR UNTIL MALFUNCTION INDICATOR
LAMP COMES “ON.”
•
IGNITION “ON,” ENGINE STOPPED.
•
ENTER SERVICE MODE ON CODE TOOL AND NOTE CODES.
CODE 42 INTERMITTENT. IF NO
ADDITIONAL CODES WERE STORED,
REFER TO “INTERMITTENTS” IN TROUBLE-
SHOOTING SECTION, OR “DIAGNOSTIC AIDS”
ABOVE WHERE APPLICABLE.
2
YES
NO
•
DISCONNECT DIST. 4-WAY CONNECTOR. NOTE OHM
METER THAT IS STILL CONNECTED TO CKT 423 AND
GROUND. RESISTANCE SHOULD HAVE GONE HIGH (OPEN
CIRCUIT). DOES IT?
•
RECONNECT ECM AND IDLE ENGINE FOR
ONE MINUTE OR UNTIL MALFUNCTION IN
DICATOR LAMP COMES “ON.”
YES
NO
CKT 424 OPEN. FAULTY
CONNECTIONS OR FAULTY
IGNITION MODULE.
CKT 423
SHORTED TO
GROUND.
•
IGNITION “OFF.”
•
DISCONNECT ECM CONNECTORS J1 AND J2
•
IGNITION “ON.”
•
DVOM SELECTOR SWITCH IN THE OHM RANGE
•
PROBE ECM HARNESS CONNECTOR CKT 423 WITH AN
OHMMETER TO GROUND.
IT SHOULD READ MORE THAN 3K
Ω
OHMS.
DOES IT?
YES
NO
OPEN CKT 423. FAULTY CONNECTION
OR FAULTY IGNITION MODULE.
•
PROBE ECM HARNESS CONNECTOR CKT 424 WITH
A TEST LIGHT TO 12 VOLTS AND NOTE LIGHT.
LIGHT “ON”
4
5
LIGHT “ON”
LIGHT “OFF”
CKT 424 SHORTED
TO GROUND.
FAULTY IGNITION
MODULE.
LIGHT “ON”
LIGHT “OFF”
CODE 42
CODE 42 INTERMITTENT.
FAULTY ECM
NO TROUBLE FOUND. CHECK
HARNESS AND CONNECTORS FOR AN
INTERMITTENT OPEN OR SHORT TO
GROUND IN CKT 423 AND 424.
Содержание 305 CID
Страница 7: ...A 1 72000 IMPORTANT INFORMATION GENERAL INFORMATION...
Страница 16: ...B 1 IMPORTANT INFORMATION MAINTENANCE...
Страница 59: ...C 1 IMPORTANT INFORMATION TROUBLESHOOTING...
Страница 92: ...A 2 72975 REMOVAL AND INSTALLATION MCM MODELS ALPHA ONE DRIVES...
Страница 103: ...B 2 70246 REMOVAL AND INSTALLATION MCM MODELS ALPHA ONE DRIVES WITH DRIVESHAFT EXTENSION...
Страница 120: ...2 72580 C REMOVAL AND INSTALLATION MCM MODELS BRAVO DRIVES...
Страница 135: ...D 2 70246 REMOVAL AND INSTALLATION MCM MODELS BRAVO DRIVES WITH DRIVESHAFT EXTENSION...
Страница 154: ...E 2 70648 REMOVAL AND INSTALLATION MIE MODELS VELVET DRIVE TRANSMISSIONS...
Страница 173: ...F 2 25280 REMOVAL AND INSTALLATION MIE MODELS HURTH TRANSMISSIONS...
Страница 189: ...A 3 72615 ENGINE 5 0L 305 CID 5 7L 350 CID...
Страница 192: ...3A 0 ENGINES 90 823225 1 1096...
Страница 266: ...ELECTRICAL SYSTEMS STARTING SYSTEM A 72079 4...
Страница 284: ...STARTING SYSTEM 4A 17 90 823225 1 1096 THIS PAGE IS INTENTIONALLY BLANK...
Страница 308: ...B 4 72722 90 823224 692 4B IGNITION SYSTEM ELECTRICAL SYSTEMS THUNDERBOLT IV AND V IGNITION SYSTEM...
Страница 334: ...C 4 72078 ELECTRICAL SYSTEM CHARGING SYSTEM...
Страница 344: ...CHARGING SYSTEM 4C 9 90 823225 1 1096 THIS PAGE IS INTENTIONALLY BLANK...
Страница 360: ...D 4 72747 ELECTRICAL SYSTEM INSTRUMENTATION...
Страница 380: ...E 4 72761 ELECTRICAL SYSTEM ELECTRICAL KITS...
Страница 393: ...F 4 72938 ELECTRICAL SYSTEMS WIRING DIAGRAMS...
Страница 427: ...A 5 50830 90 823224 692 5A FUEL DELIVERY SYSTEMS AND FUEL PUMPS FUEL SYSTEM FUEL DELIVERY SYSTEMS AND FUEL PUMPS...
Страница 438: ...B 5 72681 FUEL SYSTEM MERCARB 2 BARREL CARBURETOR...
Страница 467: ...C 5 72085 FUEL SYSTEMS ROCHESTER 4 BARREL CARBURETOR...
Страница 497: ...D 5 70389 90 823224 692 5B WEBER 4 BARREL CARBURETOR FUEL SYSTEMS WEBER 4 BARREL CARBURETOR...
Страница 538: ...5 71692 E FUEL SYSTEMS MULTI PORT AND THROTTLE BODY FUEL INJECTION...
Страница 541: ...90 823225 1 1096 5E 0 ELECTRONIC FUEL INJECTION MULTI PORT AND THROTTLE BODY THIS PAGE IS INTENTIONALLY BLANK...
Страница 558: ...ELECTRONIC FUEL INJECTION MULTI PORT AND THROTTLE BODY 5E 17 90 823225 1 1096 THIS PAGE IS INTENTIONALLY BLANK...
Страница 591: ...90 823225 1 1096 5E 50 ELECTRONIC FUEL INJECTION MULTI PORT AND THROTTLE BODY THIS PAGE IS INTENTIONALLY BLANK...
Страница 727: ...F 5 73662 FUEL SYSTEMS BOS SAV EMISSIONS...
Страница 744: ...A 6 22381 COOLING SYSTEM SEAWATER COOLING MODELS...
Страница 773: ...B 6 72987 COOLING SYSTEM CLOSED COOLED MODELS...
Страница 823: ...A 7 72699 EXHAUST SYSTEM GENERAL...
Страница 828: ...THIS PAGE IS INTENTIONALLY BLANK TO ALLOW FOR CORRECTIONS OR ADDITIONS AT A LATER DATE 7A 4 GENERAL 90 823225 1 1096...
Страница 829: ...B 7 72695 EXHAUST SYSTEM MANIFOLDS AND ELBOWS...
Страница 835: ...C 7 70593 EXHAUST SYSTEM RISERS...
Страница 843: ...THIS PAGE IS INTENTIONALLY BLANK TO ALLOW FOR CORRECTIONS OR ADDITIONS AT A LATER DATE RISERS 7C 7 90 823225 1 1096...
Страница 844: ...D 7 72737 EXHAUST SYSTEM COLLECTORS...
Страница 855: ...THIS PAGE IS INTENTIONALLY BLANK TO ALLOW FOR CORRECTIONS OR ADDITIONS AT A LATER DATE 7D 10 COLLECTORS 90 823225 1 1096...
Страница 856: ...A 8 DRIVES VELVET DRIVE IN LINE TRANSMISSION...
Страница 869: ...B 8 DRIVES VELVET DRIVE V DRIVE AND WALTER V DRIVE TRANSMISSION...
Страница 882: ...C 8 25280 DRIVES HURTH DOWN ANGLE TRANSMISSION...
Страница 932: ...E 8 DRIVES DRIVE SHAFT PROPELLER SHAFT MODELS...
Страница 947: ...A 9 72951 POWER STEERING PUMP...