(SV 1-6) Diagnostic Trouble Codes

All though specific SCV number is listed in the table, the following trouble codes may be true of any SCV on the tractor. If an SV code is displayed, make sure you note exactly which SCV it is and take appropriate action for that specific SCV as described in the solution column for the trouble code.

(SV 1-6) Diagnostic Trouble Codes
Diagnostic Trouble Code	Display	Solution
SV1 158.3	Hydraulic System	SCV 1 Voltage High. Reference Diagnostic Procedure in Technical Manual.
SV1 158.4	Hydraulic System	SCV 1 Voltage Low. Reference Diagnostic Procedure in Technical Manual.
SV1 2034.9	Communication System	SCV 1 Not Operating Correctly. Reference Diagnostic Procedure in Technical Manual.
SV1 4084.7	Hydraulic System	SCV 1 Not in Float Position. Reference Diagnostic Procedure in Technical Manual.
SV1 4084.16	Hydraulic System	SCV 1 Beyond Commanded Position. Reference Diagnostic Procedure in Technical Manual.
SV1 4084.18	Hydraulic System	SCV 1 Failed to Reach Commanded Position. Reference Diagnostic Procedure in Technical Manual.
SV1 4085.7	Hydraulic System	SCV 1 Not in Neutral Position. Reference Diagnostic Procedure in Technical Manual.
SV1 4085.12	Hydraulic System	SCV 1 Not Operating Correctly. Reference Diagnostic Procedure in Technical Manual.
SV1 600006.31	Hydraulic System	Vehicle Controls Not Operating Correctly. Reference Diagnostic Procedure in Technical Manual.
SV2 158.3	Hydraulic System	SCV 2 Voltage High. Reference Diagnostic Procedure in Technical Manual.
SV1 158.3	Hydraulic System	SCV I supply voltage high. Restart engine to attempt vehicle recovery.
SV1 158.4	Hydraulic System	SCV I supply voltage low. Reduce electrical load or increase engine RPM to attempt vehicle recovery.
SV2 158.4	Hydraulic System	SCV 2 Voltage Low. Reference Diagnostic Procedure in Technical Manual.
SV2 2034.9	Communication System	SCV 2 Not Operating Correctly. Reference Diagnostic Procedure in Technical Manual.
SV2 4084.7	Hydraulic System	SCV 2 Not in Float Position. Reference Diagnostic Procedure in Technical Manual.
SV2 4084.16	Hydraulic System	SCV 2 Beyond Commanded Position. Reference Diagnostic Procedure in Technical Manual.
SV2 4084.18	Hydraulic System	SCV 2 Failed to Reach Commanded Position. Reference Diagnostic Procedure in Technical Manual.
SV2 4085.7	Hydraulic System	SCV 2 Not in Neutral Position. Reference Diagnostic Procedure in Technical Manual.
SV2 4085.12	Hydraulic System	SCV 2 Not Operating Correctly. Reference Diagnostic Procedure in Technical Manual.
SV2 600006.31	Hydraulic System	Vehicle Controls Not Operating Correctly. Reference Diagnostic Procedure in Technical Manual.
SV1 2034.9 .	Communication System	SCV I command message missing. Restart engine to attempt vehicle recovery.
SV1 4084.16 SV1 158.4	Hydraulic System	SCV I beyond commanded spool position. Cycle external control lever or restart engine to attempt vehicle recovery.
SV1 4084.18 SV1 2034.9 .	Hydraulic System	SCV I commanded spool position not reached. Cycle external control lever or restart engine to attempt vehicle recovery.
SV1 4085.7 SV1 4084.7 SV1 158.3	Hydraulic System	SCV I Neutral position not reached. Cycle external control lever or restart engine to attempt vehicle recovery.
SV1 4085.12 SV1 4084.16 SV1 158.4	Hydraulic System	SCV I control unit fault. Restart engine to attempt vehicle recovery.
SV1 600006.31 SV1 4084.18 SV1 2034.9 .	Hydraulic System	SCV I fault.