Inspection Procedure

WARNING: This page is about a different car, the 2009 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.

INSPECT NAVIGATION RECEIVER ASSEMBLY

Disconnect the navigation receiver assembly connector.
Measure the voltage according to the value(s) in the table below.

Standard Voltage

VOLTAGE SPECIFICATION

Tester Connection	Condition	Specified Condition
E106-5 (REV) - Body ground	Ignition switch ON Shift lever Is In R	11 to 14 V
E106-5 (REV) - Body ground	Ignition switch ON Shift lever is In any position except R	Below 1 V

Fig 1: Identifying Navigation Receiver Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: Go to step 2

OK: REPLACE NAVIGATION RECEIVER ASSEMBLY (See REMOVAL )

CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER - BACK-UP LIGHT SWITCH, PNP SWITCH)

Disconnect the navigation receiver assembly connector.
Disconnect the back-up light switch*1 or the park/neutral position switch*2.
Measure the resistance according to the value(s) in the table below.

Standard Resistance:

for Manual Transaxle

RESISTANCE SPECIFICATION

Tester Connection	Condition	Specified Condition
E106-5 (REV) - B5-1*3	Always	Below 1 Ω
E106-5 (REV) - B60-1*4	Always	Below 1 Ω
E106-5 (REV) - Body ground	Always	10 kΩ or higher

for Automatic Transaxle

RESISTANCE SPECIFICATION

Tester Connection	Condition	Specified Condition
E106-5 (REV) - B88-1 (RL)	Always	Below 1 Ω
E106-5 (REV) - Body ground	Always	10 kΩ or higher

HINT:

*1: for Manual Transaxle
*2: for Automatic Transaxle
*3: for 2AZ-FE
*4: for 2ZR-FE

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig 2: Identifying Navigation Receiver Connector Terminal

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: Go to next step

CHECK HARNESS AND CONNECTOR (BACK-UP LIGHT SWITCH, PNP SWITCH BATTERY)

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

Standard Voltage:

for Manual Transaxle

VOLTAGE SPECIFICATION

Tester Connection	Condition	Specified Condition
B5-2 - Body ground*3	Ignition switch ON	11 to 14 V
B60-2 - Body ground*4	Ignition switch ON	11 to 14 V

for Automatic Transaxle

VOLTAGE SPECIFICATION

Tester Connection	Condition	Specified Condition
B88-2 - Body ground	Ignition switch ON	11 to 14 V

HINT:

*1: for Manual Transaxle
*2: for Automatic Transaxle
*3: for 2AZ-FE
*4: for 2ZR-FE

Result

RESULT REFERENCE

Result	Proceed to
NG	A
OK (for C59 Manual Transaxle)	B
OK (for E351 Manual Transaxle)	C
OK (for U250E Automatic Transaxle)	D
OK (for U341E Automatic Transaxle)	E

Fig 3: Identifying Back-Up Light Switch Connector Terminal

B: REPLACE BACK-UP LIGHT SWITCH (for C59 Manual Transaxle) (See REMOVAL )

C: REPLACE BACK-UP LIGHT SWITCH (for E351 Manual Transaxle) (See REMOVAL )

D: REPLACE PARK/NEUTRAL POSITION SWITCH (for U250E Automatic Transaxle) (See REMOVAL )

E: REPLACE PARK/NEUTRAL POSITION SWITCH (for U341E Automatic Transaxle) (See TYPICAL ENABLING CONDITIONS )

A: REPAIR OR REPLACE HARNESS OR CONNECTOR