Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Entire Combination Meter does not Operate

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Vehicle Interior / Meter / Gauge / Display / Meter / Gauge System(for Gasoline Model) / Entire Combination Meter does not Operate

DESCRIPTION

This circuit is the power source circuit for the combination meter assembly. This circuit provides two types of power sources; one is a constant power source, and the other is an IG power source.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
  • Inspect the fuses of circuits related to this system before performing the following procedure.

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT)

(a) Disconnect the G16 combination meter assembly connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

G16-21 (ES) - Body ground

Always

Below 1 Ω

G16-2 (EP) - Body ground

Always

Below 1 Ω

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

Standard Voltage:

Tester Connection

Condition

Specified Condition

G16-39 (IG+) - Body ground

Engine switch off

Below 1 V

Engine switch on (IG)

11 to 14 V

G16-40 (B) - Body ground

Always

11 to 14 V
OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR
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