Retrieving codes – Equus 3145 - Digital Ford Code Reader (1981 - 1995) User Manual
Page 54
Retrieving Codes
FAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (55 - 62)
51
Chapter 4
TEST
CODE
CONDITION
FAULT CODE DEFINITION
55
R
(Trucks ONLY): Charging system fault
56
O, C
(Cars ONLY): Mass or vane air flow sensor
above maximum voltage transmission
sensor failure
56
C
(Trucks ONLY): Mass Air Flow sensor
fault (voltage higher than normal) (4.0L
models)
56
O, C
(Trucks ONLY): Transmission oil
temperature sensor fault (ex. 4.0L models)
57
O
(Cars ONLY): Octane adjust circuit
grounded
57
C
(Cars ONLY): AXOD Neutral Pressure
Switch (NPS) circuit fault; circuit open
58
O, C
(Cars ONLY): Vane air control circuit
fault; circuit open
58
R
(Trucks ONLY): Idle tracking switch
circuit fault
59
O
(Cars ONLY): AXOD 4/3 pressure switch
circuit failure or idle adjust circuit
grounded (2.9L MAP)
59
O, C
(Cars ONLY): AXOD 4/3 pressure switch
circuit failure or 2-3 shift error (E4OD)
59
O, C
(Cars ONLY): Low speed fuel pump circuit
failure
59
C
(Trucks ONLY): Transmission throttle
pressure switch circuit fault (1985 through
1988 models)
59
C
(Trucks ONLY): 2-3 shift error (1989
models)
61
O, C
Engine coolant temperature sensor fault or
circuit grounded
62
O
(Cars ONLY): AXOD 4/3 or 3/2 pressure
switch circuit failure; circuit closed
62
C
(Cars ONLY): Transmission clutch fault
(E4OD)
62
O, R
(Trucks ONLY): Transmission 4/3 circuit
fault
4