Inspection Procedure

WARNING: This page is about a different car, the 2004 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.

Check fuses (GAUGE, MPX-B AND SRS-B fuse).
1. NG: Replace fuse.
2. OK: Go to next step.
Check voltage between terminals A15, A16, A17, and A19, of combination meter connector.
PREPARATION:
1. Remove combination meter.
2. Disconnect the combination meter connector.
CHECK:

Measure voltage between terminals A15 and A19 of combination meter connector.

OK:

Voltage: 10 - 14 V

CHECK:

Measure voltage between terminals A17 and A19 and combination meter connector.

OK:

Voltage: 10 - 14 V

Fig 1: Identifying Combination Meter Connector
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. OK: Proceed to next circuit inspection shown in problem symptoms table (See PROBLEM SYMPTOMS TABLE )
2. NG: Go to next Step.
Check for open in harness and connector between terminal A19 of combination meter and body ground (See HOW TO USE THE DIAGNOSTIC CHART AND INSPECTION PROCEDURE ).
1. NG Repair of replace harness or connector.
2. OK: Go to next step.
  Check and repair harness and connector between combination meter and battery.