LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 1987 >> DL 2D Coupe, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> SPFI CEC System >> Trouble Shooting >> Function Modes >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Function Modes: Notes

The self-diagnosis function has 4 modes: "U" check mode, read memory mode, "D" check mode and clear memory mode. Two connectors (read memory and test mode) and two lamps (ECS and oxygen monitor) are used. The connectors are for mode selection and the lamps monitor the type of problem.

FUNCTION MODE SELECTIONS

Mode Ignition Read Memory Connector Test Mode Connector
U-Check ON Disconnect Disconnect
Read ON Connect Disconnect
D-Check ON Disconnect Connect
Clear ON Engine running Connect Connect
Fig 1: Connector Locations
G62412Courtesy of SUBARU OF AMERICA, INC.