Retrieving codes – Equus 3145 - Digital Ford Code Reader (1981 - 1995) User Manual
Page 58
Retrieving Codes
FAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (89 - 112)
55
Chapter 4
TEST
CODE
CONDITION
FAULT CODE DEFINITION
89
O
Exhaust heat control
91
O
Shift Solenoid 1 (SS1) circuit failure
91
R
(Cars ONLY): HEGO (HO2S) sensor
voltage low / system lean
91
C
(Cars ONLY): HEGO (HO2S) sensor signal
out of range /always lean
92
O
Shift Solenoid 2 (SS2) circuit failure
92
R
(Cars ONLY): HEGO (HO2S) sensor
voltage high / system rich
93
O
(Cars ONLY): Throttle position sensor
signal input low at maximum DC motor
extension or Converter Clutch Control
(CCC) circuit failure
93
O
(Trucks ONLY): Coast clutch circuit failure
94
O
Converter Clutch Control (CCC) circuit
failure
94
R
(Cars ONLY): Air diverter solenoid circuit
fault
95
O, C
Fuel pump secondary circuit fault
96
O, C
Fuel pump secondary circuit fault / high
speed fuel pump relay open
97
O
Overdrive Cancel Indicator Light (OCIL)
circuit failure
98
O
Electronic Pressure Control (EPC) driver
failure in processor
98
R
(Cars ONLY): Hard fault is present -
FMEM mode
98
R
(Trucks ONLY): Test failure, hard fault
repeat sequence (1985 through 1988)
99
O, C
Electronic Pressure Control (EPC) circuit
failure
99
R
(Cars ONLY): EEC system has not learned
to control idle
111
O, R, C
System PASS
112
O, C
(Cars ONLY): Intake Air Temperature
(IAT) sensor circuit below minimum voltage
/ 254°F indicated
4