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Park/Neutral Position Switch

Disconnect harness connector at park/neutral position switch. Switch is located on side of transmission. Using ohmmeter, check for continuity between specified terminals in accordance with selector lever position. For GS300 and GS400, see PNP SWITCH CONTINUITY (GS300 & GS400)  table. Also see Fig 1. For LS400 and SC400, see Fig 2. On all models, replace PNP switch if defective.

PNP SWITCH CONTINUITY (GS300 & GS400)

Selector Lever Position Continuity @ Terminals No.
"P" 1 & 3; 6 & 9
"R" 2 & 3
"N" 3 & 5; 6 & 9
"D" Or "M" 3 & 7
"2" 3 & 4
"L" 3 & 8
Fig 1: Identifying PNP Switch Connector Terminals (GS300 & GS400)
G00045629Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: Testing PNP Switch (LS400 & SC400)
G00045630Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002