Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.

CHECK INDICATOR LAMP

Inspect the indicator light condition by operating the P position switch.

Result:

INDICATOR LIGHT CONDITION

Condition	Proceed to
Indicator light does not go off.	A
Indicator light does not come on.	B

B: Go to step c

CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU ASSY - P POSITION SWITCH)

Fig 1: Identifying Transmission Control ECU ASSY T4 Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the T4 connector from the transmission control ECU assy.
Disconnect the M11 connector from the P position switch.
Measure the resistance according to the value(s) in the table below.

Standard:

TESTER CONNECTION SPECIFIED CONDITION

Tester connection (Symbols)	Condition	Specified condition
T4-9 (IND) - Body ground	Always	10 kΩ or higher

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE TRANSMISSION CONTROL ECU ASSY

INSPECT FUSE

Fig 2: IDENTIFYING P CON MAIN Fuse
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Remove the P CON MAIN fuse from the engine room R/B and J/B.
2. Check for continuity of the P CON MAIN fuse.
Standard: Continuity

NG: INSPECT FOR SHORT IN ALL COMPONENTS CONNECTED TO FUSE AND REPAIR OR REPLACE THEM IF NEEDED, AND REPLACE FUSE

OK

INSPECT COMPUTER, TRANSMISSION CONTROL IND TERMINAL)

Fig 3: Identifying T4 Connector IND Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the T4 connector from the transmission control ECU assy.
Measure the voltage according to the value(s) in the table below.

Standard:

TESTER CONNECTION SPECIFIED CONDITION

Tester connection (Symbols)	Condition	Specified condition
T4-9 (IND) - Body ground	Always	9 to 14 V

OK: REPLACE TRANSMISSION CONTROL ECU ASSY

CHECK HARNESS AND CONNECTOR (TRANSMISSION CONTROL ECU ASSY - P POSITION SWITCH)

Fig 4: Identifying M11 Connector IND - Terminal AND T4 Connector IND Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Disconnect the M11 connector from the P position switch.
Measure the resistance according to the value(s) in the table below.

Standard:

TESTER CONNECTION SPECIFIED CONDITION

Tester connection (Symbols)	Condition	Specified condition
T4-9 (IND) - M11-6 (IND-)	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

INSPECT P POSITION SWITCH

Fig 5: Identifying P Position Switch M11 Connector IND + Terminal

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

Standard:

TESTER CONNECTION SPECIFIED CONDITION

Tester connection(Symbols)	Condition	Specified condition
M11-5 (IND+) - Body ground	Always	9 to 14 V

OK: REPLACE P POSITION SWITCH

REPAIR OR REPLACE HARNESS OR CONNECTOR (P POSITION SWITCH - BATTERY)