Inspection Procedure

HINT:

• The whole accessory meter assembly should be replaced if the passenger seat belt warning light has a malfunction because this part is not independently supplied.
• If any DTC for the clock communication system is output, there may be a malfunction in communication between the clock assembly and multi-display.
• The combination meter assembly controls illumination through the ILL+ terminal.
• If deviation in the clock exceeds the specification, replace the accessory meter assembly (See REMOVAL ).

Standard: 

w/o Navigation system: +-1 second/day 

w/ Navigation system: -2 to 6 seconds/day 

1. INSPECT CLOCK ASSEMBLY 
   1. Remove the clock display.
   2. Disconnect the E4 (*1)/E5 (*2) connector.
   3. Measure the voltage according to the value(s) in the table below.

      Voltage 

      VOLTAGE SPECIFICATIONS
      
      

      Tester Connection	Condition	Specified Condition
      E4-1 (B(+)) ((1)) - Body ground	Always	10 to 14 V
      E4-2 (EARTH(-)) ((1)) - Body ground	Always	Below 1 V
      E4-4 (ACC(+)) ((1)) - Body ground	Ignition switch on (ACC)	10 to 14 V
      E5-4 (ACC(+)) ((2)) - Body ground	Ignition switch on (ACC)	10 to 14 V
      E5-7 (EARTH(-)) ((2)) - Body ground	Always	Below 1 V
      E5-8 (B(+)) ((2)) - Body ground	Always	10 to 14 V
      (1) w/o Navigation System
      (2) w/ Navigation System

   Fig 1: Identifying E4 (1)/E5 (2) Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: Go to Next Step 

2. CHECK ILLUMINATION 
   NAVIGATION SYSTEM DESCRIPTION
   
   

   w/o Navigation system	A
   w/ Navigation system	B

   B: GO TO  NAVIGATION SYSTEM 

   A: Go to Next Step 

3. CHECK HARNESS AND CONNECTOR (BODY ECU - CLOCK DISPLAY) 
   1. Disconnect the E4 and D6 connectors.
   Fig 2: Identifying E4 And D6 Connectors Terminals
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Measure the resistance according to the value(s) in the table below.

      Resistance 

      RESISTANCE SPECIFICATIONS
      
      

      Tester Connection	Condition	Specified Condition
      E4-3 (ILL+) - D6-16 (ACAN)	Always	Below 1 Ω
      D6-16 (ACAN) - Body ground	Always	10 Ω or higher

   NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

   OK: Go to Next Step 

4. INSPECT CLOCK ASSEMBLY 
   1. Remove the clock display with the connectors still connected.
   2. Disconnect the E4 connector.
   Fig 3: Identifying E4 Connector Terminals
   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   3. Measure the voltage according to the value(s) in the table below.

      Voltage 

      VOLTAGE SPECIFICATIONS
      
      

      Tester Connection	Condition	Specified Condition
      E4-3 (ILL+) - Body ground	Ignition switch on (ACC) and TAIL on	10 to 14 V

   NG: REPLACE ACCESSORY METER ASSEMBLY 

   OK: REPLACE BODY ECU