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.

Lighting System

DTC Code

Detection Item

Trouble Area

See page

B1244

Light Sensor Circuit Malfunction

- Automatic light control sensor

- Main body ECU (multiplex network body ECU)

- Harness or connector


Data List / Active Test
DATA LIST / ACTIVE TEST 1. 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 any p ...

Light Sensor Circuit Malfunction (B1244)
DESCRIPTION The automatic light control sensor detects ambient light, converts it into an electrical signal, and outputs it to the main body ECU. The main body ECU turns on or off the headlights ...

Other materials about Toyota 4Runner:

Rear Power Window RH Auto Up / Down Function does not Operate with Rear Power Window Switch RH
DESCRIPTION If the auto up/down function does not operate, the cause may be one or more of the following: The ECU in the power window regulator motor determines that the power window regulator motor has not been initialized. The rear power w ...

ECU Power Source Circuit
DESCRIPTION This is the power source for the tire pressure warning ECU. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: When replacing the tire pressure warning ECU, read the IDs stored in the old ECU using the Techstream and write them down ...

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