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Home >> Lexus >> 2003 >> GS 300 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - Diagnostics >> Circuit Inspection >> Transmission Shift Switch Circuit >> Inspection Procedure >> Check Transmission Shift Switch
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Check Transmission Shift Switch

PREPARATION: 

  1. Remove the steering wheel pad.
  2. Disconnect the transmission shift switch connector.

CHECK: 

Check continuity between each terminal of transmission shift switch connector.

OK: 

Fig 1: Checking Continuity Between Each Terminal Of Transmission Shift Switch Connector
G03632477Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
SWITCH CONDITION SPECIFIED VALUE CHART

Switch condition Tester connection Specified value
"Up" switch pressed 1-4 No continuity
"Up" switch released Continuity
"Down" switch pressed 2-3 No continuity
"Down" switch released Continuity
  1. NG: Replace the steering wheel. 
  2. OK: Go To  CHECK VOLTAGE BETWEEN EACH OF TERMINALS SFTU, SFTD AND E1 OF ECM