Trouble Diagnoses - Self-diagnosis (Cont'd)
AT-35flowchartA/T (Automatic Transmission) specific page. Relates to A/T control unit self-diagnosis for O.D. OFF indicator lamp.
Self-diagnosis (Cont'd)
O.D. OFF Indicator Lamp Self-diagnosis
Does not come on. O/D OFF lamp off. Self-diagnosis start — Light signal then Shade signal (SAT157C)
Damaged circuitInhibitor switch, overdrive switch, kickdown switch or idle switch circuit is disconnected or A/T control unit is damaged.
Damaged Circuit — O.D. OFF Indicator Lamp Does Not Come On
Components (8)
Ignition switchE.C.U.FuseInhibitor switchThrottle valve switchA/T control unitOverdrive switchKickdown switch
Connections (7)
Ignition switch
Ignition switchFuse— Ignition switch to Fuse
E.C.U.
E.C.U.Throttle valve switch— ECU to Throttle valve switch
Fuse
FuseInhibitor switch— Fuse to Inhibitor switch
Inhibitor switch
Inhibitor switchA/T control unit— Inhibitor switch pins to A/T control unit pins 26, 19, 20, 1, 2
Throttle valve switch
Throttle valve switchA/T control unit— Throttle valve switch to A/T control unit pins 17, 4
A/T control unit
A/T control unitOverdrive switch— A/T control unit pins 9, 23 to Overdrive switch
A/T control unitKickdown switch— A/T control unit pin 7 to Kickdown switch
IMPORTANT
Go to INHIBITOR, OVERDRIVE, KICKDOWN AND IDLE SWITCH CIRCUIT CHECKS.
See also
INHIBITOR SWITCH CIRCUIT CHECKS · OVERDRIVE SWITCH CIRCUIT CHECKS · KICKDOWN SWITCH CIRCUIT CHECKS · IDLE SWITCH CIRCUIT CHECKS