Toyota 4Runner manuals

Toyota 4Runner: Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

HINT:

If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" below.

Certification ECU

DTC Code

Detection Item

Trouble Area

See page

B27A1

Open in Driver Side Electrical Antenna Circuit

- Harness or connector

- Front door outside handle assembly (for driver side)

- Certification ECU


B27A2

Open in Front Passenger Side Electrical Antenna Circuit

- Harness or connector

- Front door outside handle assembly (for front passenger side)

- Certification ECU


B27A5

Open in Front Floor Electrical Key Oscillator Circuit

- Harness or connector

- Indoor No. 1 electrical key antenna (front floor)

- Certification ECU


B27A6

Open in Rear Floor Electrical Key Oscillator Circuit

- Harness or connector

- Indoor No. 2 electrical key antenna (rear floor)

- Certification ECU


B27A7

Open in Inside Luggage Compartment Electrical Key Oscillator Circuit

- Harness or connector

- Indoor No. 2 electrical key antenna (inside luggage)

- Certification ECU


B27A8

Open in Outside Luggage Compartment Electrical Key Antenna Circuit

- Harness or connector

- Electrical key antenna (outside luggage)

- Certification ECU


Open in Outside Luggage Compartment Electrical Key Antenna Circuit (B27A8)
DESCRIPTION The certification ECU generates a request signal and transmits the signal to the electrical key antenna (outside luggage). The electrical key antenna (outside luggage) detects that th ...

Open in Rear Floor Electrical Key Oscillator Circuit (B27A6)
DESCRIPTION The certification ECU generates a request signal and transmits the signal to the indoor No. 2 electrical key antenna (rear floor). The indoor No. 2 electrical key antenna (rear floor) ...

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