Toyota CH-R Service Manual: Engine Oil Pressure Switch Circuit

HINT:

• The combination meter assembly receives various vehicle information signals from the ECM via CAN communication in order to output warnings.
• The combination meter assembly operates the following to output oil pressure warnings:
  1. Engine oil pressure warning light
  2. Engine oil pressure warning buzzer
  3. Engine oil pressure warning message on multi-information display

NOTICE:

• The following troubleshooting procedure is based on the assumption that the ECM is normal. Confirm that the SFI system is not malfunctioning before performing the following procedure.
  • w/ Canister Pump Module:

    Click here

  • w/o Canister Pump Module:

    Click here

• 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.

Meter Illumination is Always Dark

DESCRIPTION The combination meter assembly receives signals from this circuit to adjust the illumination of the combination meter assembly. The combination meter assembly sets the illumination le ...

Steering Pad Switch Circuit

DESCRIPTION The combination meter assembly and steering pad switch assembly are connected via direct line. The main display and multi-information display in the combination meter assembly are ope ...

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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 ...

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INSPECTION PROCEDURE 1. INSPECT WINDSHIELD WASHER MOTOR AND PUMP ASSEMBLY (for Front Side) HINT: This check should be performed with the windshield washer motor and pump assembly installed to the windshield washer jar assembly. (a) Fill the windshield washer jar assembly with washer fluid. ...