Inspection Procedure

Check pattern select switch (2nd start switch).
PREPARATION:

Disconnect the pattern select switch connector.

CHECK:

Check continuity between terminals 2 and 3 of pattern select switch connector when pattern select switch is set to 2nd start switch ON and OFF.

Fig 1: Disconnecting Pattern Select Switch Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Fig 2: Specified Condition Table
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: Replace the pattern select switch.
2. OK: Go To Next Step
Check harness and connector between terminal SNWI of ECM and body ground.
PREPARATION:
1. Connect the pattern select switch connector.
2. Disconnect the connector of ECM.
CHECK:

Check continuity between terminal SNWI of ECM and body ground when the pattern select switch is set to 2nd start switch ON and OFF.

Fig 3: Checking Continuity Between Terminal SNWI of ECM
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK:

Fig 4: Specified Condition Table
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. OK: Proceed to next circuit inspection shown on matrix chart (See PROBLEM SYMPTOMS TABLE ).
2. NG: Repair or replace harness or connector (See HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS ).