1968 Shelby GT500

Three-Digit Codes 587-656

#

When

3-Digit Code Definitions

KOEO

CM

KOER

587

X

X

 

Data Communications Link (DCL) error

593

X

X

 

Oxygen Sensor Heater circuit failure

617

 

X

 

1 – 2 shift error (E4OD)

618

 

X

 

2 – 3 shift error (E4OD)

619

 

X

 

3 – 4 shift error (E4OD)

621

X

 

 

Shift solenoid #1 circuit failure

622

X

 

 

Shift solenoid #2 circuit failure

623

X

 

 

Overdrive light circuit failure

624

X

X

 

Electronic Pressure Control solenoid or driver circuit failure

625

X

X

 

Electronic Pressure Control driver open in EEC

626

X

 

 

Coast clutch solenoid circuit failure (E4OD)

627

X

 

 

Converter clutch solenoid circuit failure (E4OD)

628

 

X

 

Converter clutch Lock-Up error (E4OD)

629

X

X

 

Converter clutch control circuit failure

631

X

 

 

Overdrive light circuit failure

632

 

 

X

Overdrive cancel switch not changing state (E4OD)

633

X

 

 

4WD switch is closed

634

X

 

X

Transmission Manual Lever Position Sensor circuit out of self test.

636

X

 

X

TOT sensor voltage out of self test range.

637

X

X

 

TOT sensor circuit above maximum voltage

638

X

X

 

TOT sensor circuit below minimum voltage

639

 

X

X

Insufficient input from the Transmission Speed Sensor

641

X

 

 

Shift solenoid #3 circuit failure

643

X

X

 

Converter Clutch Control circuit failure

645

 

X

 

Incorrect gear ratio obtained for first gear

646

 

X

 

Incorrect gear ratio obtained for second gear

647

 

X

 

Incorrect gear ratio obtained for third gear

648

 

X

 

Incorrect gear ratio obtained for fourth gear

649

 

X

 

Electronic Pressure Control range failure

651

 

X

 

Electronic Pressure Control circuit failure

652

X

 

 

Modulated Converter Clutch Control solenoid output circuit
error

653

 

 

X

Transmission Control Switch was not cycled during KOER Self-Test.

654

X

 

 

MLP sensor not in park position

656

 

X

 

Converter Clutch Control continuous slip error detected

KOEO = Key On Engine Off, CM = Continues Memory, KOER = Key On Engine Running

Codes 111-171
Codes 172-223
Codes 224-525
Codes 526-586
Codes 657-999
Two Digit Codes

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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