Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota Yaris. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE ST)

Disconnect the transmission wire connector from the transaxle.

Fig 1: Identifying Transmission Wire (Shift Solenoid Valve ST)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Measure the resistance.

Standard resistance

STANDARD RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
2 (ST) - Body ground	11 Ω to 15 Ω at 20°C (68°F)

NG: Go to step 3

OK: go to next step

CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)

Connect the transmission connector to the transaxle.

Fig 2: Identifying Harness And Connector (Transmission Wire - ECM)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the ECM connector.

Measure the resistance.

Standard resistance

STANDARD RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
80 (ST) - Body ground	11 Ω to 15 Ω at 20°C (68°F)

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: REPLACE ECM (See REMOVAL )

INSPECT SHIFT SOLENOID VALVE ST

Remove shift solenoid valve ST.

Fig 3: Identifying Shift Solenoid Valve ST

Measure the resistance.

Standard resistance

STANDARD RESISTANCE SPECIFICATION

Tester Connection	Specified Condition
Solenoid Connector (ST) - Solenoid Body (ST)	11 to 15 Ω at 20°C (68°F)

Connect the positive (+) lead to the terminal of the solenoid connector and the negative (-) lead to the solenoid body to check the solenoid valve operation.
OK:

The solenoid makes operating sounds.

NG: REPLACE SHIFT SOLENOID VALVE ST (See DISASSEMBLY )

OK: REPAIR OR REPLACE TRANSMISSION WIRE (See REMOVAL )