EEC IV Diagnostic Routines;

miesk5

96 Bronco 5.0
Staff member
Moderator
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Oct 18, 2005
Messages
7,776
Location
Coronado, CA
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Symptom Flow Charts — Chart 5

Symptom​
OASIS Number​
Unique Idle Concerns
—Slow Return to Idle​
617400​



 

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
7,776
Location
Coronado, CA
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Symptom Flow Charts — Chart 6

Symptom​
OASIS Number​
Unique Idle Concerns
—Rolling Idle​
618400​
Runs Rough
608000​
—Idle​
608400​















 

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
7,776
Location
Coronado, CA
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Symptom Flow Charts — Chart 7

Symptom​
OASIS Number​
Unique Idle Concerns
—Fast Idle​
619400​
Additional Driveability Concerns
—Diesels/Runs On​
621000​

Note: If the vehicle runs normally after the ignition key is turned off, check for faulty ignition switch, IGN RUN circuit short to power, etc. Refer to Service Manual.







 

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
7,776
Location
Coronado, CA
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Symptom Flow Charts — Chart 8

Symptom​
OASIS Number​
Unique Idle Concerns
—Low Idle​
Stalls/Quits
607000​
—Deceleration​
607700​







 

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
7,776
Location
Coronado, CA
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Symptom Flow Charts — Chart 9

Symptom​
OASIS Number​
Stalls/Quits
607000​
—Acceleration​
607500​
—Cruise​
607600​
Runs Rough
608000​
—Acceleration​
608500​
—Cruise​
608600​
Misses
609000​
—Acceleration​
609500​
—Cruise​
609600​
Buck/Jerk
610000​
—Acceleration​
610500​
—Cruise​
610600​
—Deceleration​
610700​
Hesitation/Stumble
611000​
—Acceleration​
611500​











 

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
7,776
Location
Coronado, CA
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Symptom Flow Charts — Chart 11

Symptom​
OASIS Number​
Surge
612000​
—Acceleration​
612500​
—Cruise​
612600​











 

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
7,776
Location
Coronado, CA
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Symptom Flow Charts — Chart 12

Symptom​
OASIS Number​
Backfires
613000​
—Idle​
613400​
—Acceleration​
613500​
—Deceleration​
613600​







 

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
7,776
Location
Coronado, CA
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Symptom Flow Charts — Chart 13

Symptom​
OASIS Number​
Lack/Loss of Power
614000​
—Acceleration​
614500​
—Cruise​
614600​

Note: Verify symptom is reported under normal driving conditions without engine/vehicle excessive load conditions.











 

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
7,776
Location
Coronado, CA
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Symptom Flow Charts — Chart 14

Symptom​
OASIS Number​
Spark Knock
615000​
—Acceleration​
615500​
—Cruise​
615600​







 

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
7,776
Location
Coronado, CA
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Index
Gasoline Engines
Driveability​
OASIS Number​
Chart Number​
Starting​
No Crank​
601300​
1
Concerns​
Hard Start/Long Crank/Erratic Start/Erratic Crank​
602300​
2
Stall After Start​
—​
3
No Start/Normal Crank​
603300​
4
Unique​
Slow Return to Idle​
617400​
5
Idle​
Rolling Idle​
618400​
6
Concerns​
Fast Idle​
619400​
7
Low/Slow Idle​
—​
8
Driveability — Performance While Driving Concerns
Stalls/Quits​
Idle​
607400​
3
(607000)​
Acceleration​
607500​
9
Cruise​
607600​
9
Deceleration​
607700​
8
Runs Rough​
Idle​
608400​
6
(608000)​
Acceleration​
608500​
9
Cruise​
608600​
9
Misses​
Idle​
609500​
6
(609000)​
Acceleration​
609500​
9
Cruise​
609600​
9
Buck/Jerk​
Acceleration​
610500​
9
(610000)​
Cruise​
610600​
9
Deceleration​
610700​
9
Hesitation/Stumble
(611000)​
Acceleration​
611500​
9
Surge​
Acceleration​
612500​
11
(612000)​
Cruise​
612600​
11
Backfires​
Idle​
613400​
12
(613000)​
Acceleration​
613500​
12
Deceleration​
613600​
12
Lack/Loss of Power​
Acceleration​
614500​
13
(614000)​
Cruise​
614600​
13
Spark Knock​
Acceleration​
615500​
14
(615000)​
Cruise​
615600​
14
Additional Driveability Concerns
Diesels/
Runs On​
621000​
7
Poor Fuel
Economy​
622000​
15
Emissions
Compliance​
623000​
16
Malfunction Indicator Light (MIL) Concern
DCL Message Received (Continental Only)​
698298
698198​
17
Electrical
H
Warning Indicators​
—MIL​
206000​
17
—DCL (Continental Only)​
698298​
—TCIL, 4x4 Low, SIL​
698198​
Climate Control​
Lack of cooling (AC) (AC not functioning)​
208200​
29
(208000)​
AC always ON/AC compressor runs continuously​
—​
30
A/C does not cut off under WOT conditions.
(Applications with WAC circuitry)​
—​
31
 

miesk5

96 Bronco 5.0
Staff member
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Messages
7,776
Location
Coronado, CA
Instrumentation
—Tachometer Inoperative​
204000
204128
204228​
19
Lighting Systems-Exterior Lighting​
201000​
—Stoplamps always on​
201228​
—Stoplamps always off​
—​
33
Driveline
Manual Transmission Concern​
—Shift Indicator Lamp​
505698​
17
Automatic Transmission Shift Concerns​
—A/T upshift concern​
501000​
—A/T downshift concern​
502000​
18
—Engagement concern​
503000​
Engine
Oil System Concerns​
401000​
—High Oil Consumption​
401100​
20
—Leaks​
401800​
Cooling​
Overheating​
402300​
21
System​
Runs Cold​
—​
22
Concerns​
Electric cooling fan never runs​
—​
21
(402000)​
Electric cooling fan always runs​
—​
22
Exhaust System Concerns​
Visible Smoke​
403400​
23
(403000)​
Odor (Sulphur/"rotten egg" smell)​
403596​
34
Fuel System Concerns
(404000)​
404201​
24
—Odor, Engine Compartment​
Engine Noise (Under Hood)​
497000​
25
Governor will not Limit rpm (7.0L MFI)​
—​
27
Noise/Vibration
Vibration Concerns​
703000​
26
No Symptoms Present
EEC-IV Quick Test​
—​
32
DIESEL ENGINES
All driveability symptoms​
—​
28
 

miesk5

96 Bronco 5.0
Staff member
Moderator
Joined
Oct 18, 2005
Messages
7,776
Location
Coronado, CA
1994 PCED OBDI-A
SECTION 2A: Diagnostic Routines​
Diagnostic Routines Symptom Flow Charts — Chart 13

Symptom​
OASIS Number​
Lack/Loss of Power
614000​
—Acceleration​
614500​
—Cruise​
614600​

Note: Verify symptom is reported under normal driving conditions without engine/vehicle excessive load conditions.











 

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