Inspection Procedure

NOTE: If the transponder key ECU assembly is replaced, register the key and ECU communication ID (See REGISTRATION ).

CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH CIRCUIT)

Measure the resistance according to the value (s) in the table below.

Standard Resistance

RESISTANCE REFERENCE

Tester Connection	Condition	Specified Condition
E29-7 (CTY) - Body ground	Courtesy switch pushed (Door closed)	10 kΩ or higher
E29-7 (CTY) - Body ground	Courtesy switch free (Door open)	Below 1 Ω

Fig 1: Identifying Transponder Key ECU Assembly Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 2

OK: REPLACE TRANSPONDER KEY ECU ASSEMBLY (See TRANSPONDER KEY ECU )

INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY

Remove the front door courtesy light switch (driver side) (See FRONT DOOR COURTESY SWITCH ).

Measure the resistance according to the value (s) in the table below.

Standard Resistance

RESISTANCE REFERENCE

Tester Connection	Condition	Specified Condition
1 - Switch body	Courtesy switch pushed (Door closed)	10 kΩ or higher
1 - Switch body	Courtesy switch free (Door open)	Below 1 Ω

Fig 2: Identifying Front Door Courtesy Light Switch Connector Terminal

NG: REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (See FRONT DOOR COURTESY SWITCH )

OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (TRANSPONDER KEY ECU - FRONT DOOR COURTESY LIGHT SWITCH)