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.

Transponder Key ECU Assembly

DTC Code

Detection Item

Trouble Area

See page

B2780

Push Switch / Key Unlock Warning Switch Malfunction

- Transponder key ECU assembly

- Unlock warning switch assembly

- Harness or connector


B2784

Antenna Coil Open / Short

Transponder key amplifier


B2793

Transponder Chip Malfunction

Key


B2794

Unmatched Encryption Code

Key


B2795

Unmatched Key Code

Key


B2796

No Communication in Immobiliser System

- Transponder key ECU assembly

- Key

- Harness or connector

- Transponder key amplifier


B2797

Communication Malfunction No. 1

- Transponder key ECU assembly

- Key

- Harness or connector

- Transponder key amplifier


B2798

Communication Malfunction No. 2

Key


HINT:

The DTCs for the engine immobiliser system are specified above. If other codes are output, check the DTC chart for the SFI system.

ECM

DTC Code

Detection Item

Trouble Area

See page

B2799

Engine Immobiliser System Malfunction

- Harness or connector

- Transponder key ECU assembly

- ECM


B279A

Theft Deterrent System Communication Line High Fixation

- Harness or connector

- Transponder key ECU assembly

- ECM


B279C

Theft Deterrent System Presence Detection

ECM


Data List / Active Test
DATA LIST / ACTIVE TEST 1. READ DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing ...

Antenna Coil Open / Short (B2784)
DESCRIPTION The antenna coil receives key code signals from the transponder chip in the key grip. The coil is built into the transponder key amplifier, which amplifies the key code signals and ou ...

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Customize Parameters
CUSTOMIZE PARAMETERS 1. CUSTOMIZING FUNCTION WITH TECHSTREAM (REFERENCE) HINT: The following items can be customized. NOTICE: When the customer requests a change in a function, first make sure that the function can be customized. Record th ...

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