Navigation System Reverse Signal Circuit

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK HARNESS AND CONNECTOR (REVERSE SIGNAL)

CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - PARK/NEUTRAL POSITION SWITCH ASSEMBLY)

CHECK HARNESS AND CONNECTOR (PARK/NEUTRAL POSITION SWITCH ASSEMBLY - BATTERY)

CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - BACK-UP LIGHT SWITCH ASSEMBLY)

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

DESCRIPTION

1. The radio and display receiver assembly receives a reverse signal from the park/neutral position switch assembly.
   

1. The radio and display receiver assembly receives a reverse signal from the back-up light switch assembly.
   

WIRING DIAGRAM

INSPECTION PROCEDURE

1. Disconnect the radio and display receiver assembly connector.
   

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

   Standard Voltage:

   Tester Connection	Condition	Specified Condition
   E129-2 (REV) - Body ground	Ignition switch ON Shift lever in R	11 to 14 V
   E129-2 (REV) - Body ground	Ignition switch ON Shift lever in any position other than R	Below 1 V

3. Proceed to the next step based on the check result.
   

   Result:

   Result	Proceed to
   OK	A
   NG (for U250E, U341E)	B
   NG (for C59, E351)	C

1. Disconnect the radio and display receiver assembly connector.
   

2. Disconnect the park/neutral position switch assembly connector.
   

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

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   E129-2 (REV) - B88-1 (RL)	Always	Below 1 Ω
   E129-2 (REV) - Body ground	Always	10 kΩ or higher

1. Disconnect the park/neutral position switch assembly connector.
   

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

   Standard Voltage:

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

3. Proceed to the next step based on the check result.
   

   Result:

   Result	Proceed to
   NG	A
   OK (for U250E)	B
   OK (for U341E)	C

1. Disconnect the radio and display receiver assembly connector.
   

2. Disconnect the back-up light switch assembly connector.
   

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

   Standard Resistance:

   for C59

   Tester Connection	Condition	Specified Condition
   E129-2 (REV) - B60-1	Always	Below 1 Ω
   E129-2 (REV) - Body ground	Always	10 kΩ or higher

   for E351

   Tester Connection	Condition	Specified Condition
   E129-2 (REV) - B5-1	Always	Below 1 Ω
   E129-2 (REV) - Body ground	Always	10 kΩ or higher

1. Disconnect the back-up light switch assembly connector.
   

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

   Standard Voltage:

   for C59

   Tester Connection	Condition	Specified Condition
   B60-1 - Body ground	Ignition switch ON	11 to 14 V

   for E351

   Tester Connection	Condition	Specified Condition
   B5-1 - Body ground	Ignition switch ON	11 to 14 V

3. Proceed to the next step based on the check result.
   

   Result:

   Result	Proceed to
   NG	A
   OK (for C59)	B
   OK (for E351)	C