WARNING: This page is about a different car, the 2003 Lexus LX 470. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

Troubleshoot the Multi Display according to the table below.
w/ LEXUS Navigation System (See TERMINALS OF ECU )

TROUBLESHOOTING NO

Troubleshooting	No.
Multi display does not operate.	1
Clock loses or gains time.	2
Drive monitor function malfunction.	3
Outer temperature display malfunction.	4
Security indicator does not come on.	See SECURITY INDICATOR CIRCUIT and SECURITY INDICATOR LIGHT CIRCUIT

+/- 1.5 seconds / day

TROUBLESHOOTING NO.1
1. MULTI DISPLAY DOES NOT OPERATE
  1. Check that the battery positive voltage is 10 - 16 V.
    If voltage is not as specified, replace the battery.
  2. Check that the ECU-IG1, ECU-B and ACC fuses are not blown.
    If the fuse is blown, replace the fuse and check for short.
  3. Troubleshoot the multi display as follows.
  HINT
  
  Inspect the connector on the wire harness side.
  
  Fig 1: Identifying Multi Display Assembly
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Section 393 (Multi Display): Troubleshooting

Use the Manual With the Right Hardware

When to See a Mechanic

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