Retrieving codes – Equus 3145 - Digital Ford Code Reader (1981 - 1995) User Manual
Page 66
Retrieving Codes
FAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (569 - 631)
63
Chapter 4
TEST
CODE
CONDITION
FAULT CODE DEFINITION
569
O
(Trucks ONLY): Auxiliary Canister Purge
(AUX-CANP) circuit failure
571
O
EGR circuit failure
572
O
EGR circuit failure
578
C
A/C pressure sensor circuit
579
C
Insufficient A/C pressure change
581
C
Power to fan circuit over current
582
O
Fan circuit open
583
C
Power to fuel pump over current
584
C
Power ground circuit open
585
C
Power to A/C clutch over current
586
C
A/C clutch circuit open
587
C, O
Vehicle control relay module
communication failure
617
C
Transmission problem (1-2 shift error)
618
C
Transmission problem (2-3 shift error)
619
C
Transmission problem (3-4 shift error)
621
O
Shift Solenoid #1 circuit fault
622
O
Shift Solenoid #2 circuit fault
623
C, O
Transmission control indicator lamp
circuit failure
624
O, C
Electronic Pressure Control solenoid circuit
fault
625
O
Electronic Pressure Control solenoid circuit
fault
625
C, O, R
Hard fault is present
626
O
Coast Clutch solenoid circuit fault
627
O, C
Converter Clutch Control solenoid circuit
fault
628
O, C
Excessive converter clutch slippage
628
O
(Cars ONLY): Lock-up solenoid failure
629
O
Converter clutch solenoid circuit fault or
lock-up solenoid circuit fault
631
O
Overdrive Transmission Cancel Indicator
Light circuit fault
4