Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Entire Combination Meter does not Operate

DESCRIPTION

This circuit is the power source circuit for the meter. This circuit provides two types of power sources, one is a constant power source mainly used as a backup power source, and the other is an IG power source mainly used for signal transmission. The constant power source is mainly used as a backup power source for the meter CPU, however, it is also used for CAN communication. If a voltage of 12 V is not applied to terminal IG+ when turning the ignition switch ON, the indicators will not operate.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

CAUTION / NOTICE / HINT

CAUTION:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE

1.

CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - BATTERY AND BODY GROUND)

(a) Disconnect the combination meter assembly connector.

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

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

C9-20 (IG+) - Body ground

Ignition switch ON

11 to 14 V

C9-19 (B) - Body ground

Always

11 to 14 V

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

C9-18 (ES) - Body ground

Always

Below 1 Ω

Text in Illustration

*a

Front view of wire harness connector

(to Combination Meter Assembly)

OK

REPLACE COMBINATION METER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

Lost Communication with ECM / PCM "A" (U0100,U0129,U0142,U0151,U0163,U023A,U1104)
DESCRIPTION The combination meter communicates with the ECM, skid control ECU, power steering ECU, main body ECU (multiplex network body ECU), airbag sensor assembly, navigation receiver assembly ...

Speedometer Malfunction
DESCRIPTION The meter CPU receives vehicle speed signals from the skid control ECU via the CAN communication system (CAN V1 Bus). The speed sensor detects the wheel speed and sends the appropriat ...

Other materials:

Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE STARTER YOKE ASSEMBLY (a) Remove the nut and disconnect the lead wire from terminal C. (b) Remove the 2 bolts. (c) Pull out the starter yoke assembly and commutator end frame together with the starter armatur ...

Driver Side Power Window does not Operate with Power Window Master Switch
DESCRIPTION When the engine is running or the ignition switch is ON, the front power window regulator motor assembly LH is operated by the power window regulator master switch assembly. The front power window regulator motor assembly LH has motor, regulator, and ECU functions. HINT: If the ...

Components
COMPONENTS ILLUSTRATION *A for Double Cab *B for Access Cab *1 AUTO HIGH BEAM SWITCH *2 COWL SIDE TRIM BOARD LH *3 FRONT DOOR SCUFF PLATE LH *4 HOOD LOC ...

© 2011-2020 Copyright www.ttguide.net