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 ...

Other materials:

Toyota CH-R Service Manual > Can Communication System: Open in Bus 1 Main Bus Line
DESCRIPTION There may be an open circuit in one of the CAN main bus lines when the resistance between terminals 23 (CA1H) and 8 (CA1L) of the central gateway ECU (network gateway ECU) is 70 Ω or higher. Symptom Trouble Area Resistance between terminals 2 ...

Toyota CH-R Service Manual > Lin Communication System: Lost Communication with Power Source Control (B278C)
DESCRIPTION This DTC is stored when LIN communication between the certification ECU (smart key ECU assembly) and power management control ECU stops for 10 seconds or more. DTC No. Detection Item DTC Detection Condition Trouble Area B27 ...