Toyota 4Runner manuals

Toyota 4Runner: Antenna Coil Open / Short (B2784)

DESCRIPTION

This DTC is stored when there is an open or short malfunction in the transponder key amplifier coil (built into the engine switch).

DTC Code

DTC Detection Condition

Trouble Area

B2784

The transponder key amplifier coil is open/shorted.

  • Certification ECU
  • Engine switch

CAUTION / NOTICE / HINT

NOTICE:

Before replacing the certification ECU, refer to Registration (See page ).


PROCEDURE

1.

REPLACE ENGINE SWITCH

(a) Temporarily replace the engine switch with a new or normally functioning one (See page ).



NEXT

2.

CLEAR DTC

(a) Clear the DTCs (See page ).



NEXT

3.

CHECK FOR DTC

(a) Check for DTCs (See page ).


OK:

DTC B2784 is not output.


OK

END (ENGINE SWITCH IS DEFECTIVE)


NG

REPLACE CERTIFICATION ECU

Short to GND in Immobiliser System Power Source Circuit (B278A)
DESCRIPTION This DTC is stored when the engine switch power source supply line is open or shorted. DTC Code DTC Detection Condition Trouble Area B ...

ID BOX EEPROM Malfunction (B2790)
DESCRIPTION This DTC is stored when the ID code box detects an internal malfunction. DTC Code DTC Detection Condition Trouble Area B2790 ...

Other materials about Toyota 4Runner:

Lost Communication with ECM / PCM "A" (U0100,U0129,U0131,U0151)
DESCRIPTION The combination meter assembly communicates with the ECM via the CAN communication system (CAN No. 1 Bus). DTC Code. DTC Detection Condition Trouble Area U0100 IG voltage is 9.5 V or ...

Illumination Circuit
DESCRIPTION Power is supplied to the radio and display receiver assembly and steering pad switch illumination when the light control switch is in the tail or head position. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Inspect the fuses for c ...

© 2016-2021 | www.to4runner.net

0.0032