Toyota CH-R Service Manual: Problem Symptoms Table

Toyota CH-R Service Manual / Meter / Gauge / Display / Meter / Gauge System / Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

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.

HINT:

The following problem symptoms table is based on the assumption that each system related to the combination meter assembly is normal.
Refer to System Description for details about the communication between the combination meter assembly and each ECU.
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Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Meter or Gauge

Symptom	Suspected Area	Link
Entire combination meter assembly does not operate	Power source circuit
Speedometer malfunction	Speedometer circuit
Tachometer malfunction	Tachometer circuit
Fuel receiver gauge malfunction	Fuel receiver gauge circuit
Engine coolant temperature receiver gauge malfunction	Engine coolant temperature receiver gauge circuit

Warning or Indicator

Symptom	Suspected Area	Link
Engine oil pressure warning light malfunction	Engine oil pressure switch circuit
Other indicator lights malfunction	Combination meter assembly
Other warning lights malfunction	Combination meter assembly

Multi-information Display

Symptom	Suspected Area	Link
Multi-information display is not displayed	Combination meter assembly
Engine Oil Pressure Low display malfunction	Engine oil pressure switch circuit
Low washer fluid display malfunction*1	Washer fluid level warning switch circuit
Other display malfunction	Combination meter assembly

*1: w/ Washer Level Warning Switch

Buzzer

Symptom	Suspected Area	Link
Oil pressure warning buzzer malfunction	Engine oil pressure switch circuit
Other buzzers malfunction	Combination meter assembly

Others

Symptom	Suspected Area	Link
Entire combination meter does not operate	Power source circuit
Operating steering pad switch does not change main display	Steering pad switch circuit
Operating steering pad switch does not change multi-information display	Steering pad switch circuit
Meter illumination is always dark	Illumination circuit (Meter illumination is always dark)
Meter illumination does not dim at night	Illumination circuit (Meter illumination does not dim at night)
Meter illumination does not dim when the taillights are turned on	Combination meter assembly
Other systems that use the speed signal do not operate normally	Speed signal circuit

Initialization

INITIALIZATION MAINTENANCE REQUIRED REMINDER RESET PROCEDURE (a) Turn the ignition switch ON. (b) Using the steering pad switch assembly, display the setting display on the multi-information disp ...

Terminals Of Ecu

TERMINALS OF ECU COMBINATION METER ASSEMBLY (a) Disconnect the combination meter assembly connectors. (b) Measure the voltage on the wire harness side connector according to the value(s) in the ...

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