Selective Control Valve Units 1 - 7 (SV1 - 7) Diagnostic Trouble Codes

Although the diagnostic codes listed below are not a complete list of the diagnostic trouble codes, they do reflect codes which may be observed while operating the tractor and have corrective action that the operator can take. Many codes which appear may be corrected simply by cycling key switch or by following the solution on the CommandCenter™ page, then cycling key switch.

If corrective action cannot be taken after cycling power to the tractor or if there are any questions, contact your John Deere™ dealer.

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.

SV1 - 7 Diagnostic Trouble Codes
Diagnostic Trouble Code	Display	Solution
SV1 158.4	Hydraulic System	Reduce electrical load or increase engine RPM to attempt vehicle system recovery.
SV1 4084.16	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV1 4084.18	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV1 4084.7	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV1 4085.7	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV2 158.4	Hydraulic System	Reduce electrical load or increase engine RPM to attempt vehicle system recovery.
SV2 4084.16	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV2 4084.18	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV2 4084.7	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV2 4085.7	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV3 158.4	Hydraulic System	Reduce electrical load or increase engine RPM to attempt vehicle system recovery.
SV3 4084.16	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV3 4084.18	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV3 4084.7	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV3 4085.7	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV4 158.4	Hydraulic System	Reduce electrical load or increase engine RPM to attempt vehicle system recovery.
SV4 4084.16	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV4 4084.18	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV4 4084.7	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV4 4085.7	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV5 158.4	Hydraulic System	Reduce electrical load or increase engine RPM to attempt vehicle system recovery.
SV5 4084.16	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV5 4084.18	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV5 4084.7	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV5 4085.7	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV6 158.4	Hydraulic System	Reduce electrical load or increase engine RPM to attempt vehicle system recovery.
SV6 4084.16	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV6 4084.18	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV6 4084.7	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV6 4085.7	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV7 158.4	Hydraulic System	Reduce electrical load or increase engine RPM to attempt vehicle system recovery.
SV7 4084.16	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV7 4084.18	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV7 4084.7	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.
SV7 4085.7	Hydraulic System	Cycle external control lever or restart engine to attempt vehicle system recovery.