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.
  • *: The air conditioning amplifier stores the DTC of the respective malfunction that has been detected for the period of time indicated in parentheses.

DTC Code

Detection Item

Trouble Area

Memory*

Diagnostic Note

See page

B1411/11

Room Temperature Sensor Circuit

- Cooler thermistor (room temperature sensor)

- Harness or connector

- Air conditioning amplifier assembly

Stored

(4 seconds or more)

If the front room temperature is approx. -18.6°C (-1.48°F) or less, DTC B1411/11 may be stored even though the system is normal.


B1412/12

Ambient Temperature Sensor Circuit

- Cooler thermistor (ambient temperature sensor)

- Harness or connector

- Air conditioning amplifier assembly

Stored

(4 seconds or more)

If the ambient temperature is approx. -52.9°C (-63.22°F) or less, DTC B1412/12 may be stored even though the system is normal.


B1413/13

Evaporator Temperature Sensor Circuit

- No. 1 cooler thermistor

- Air conditioning harness assembly

- Air conditioning amplifier assembly

Stored

(4 seconds or more)

-


B1422/22

Compressor Lock Sensor Circuit

- Cooler compressor assembly (A/C lock sensor)

- Compressor drive belt

- Harness or connector

- Air conditioning amplifier assembly

- CAN communication system

-

-


B1441/41

Air Mix Damper Control Servo Motor Circuit (Passenger Side)

- Damper servo sub-assembly (front passenger side air mix damper servo)

- Air conditioning harness assembly

- Air conditioning amplifier assembly

Stored

(30 seconds or more)

-


B1442/42

Air Inlet Damper Control Servo Motor Circuit

- Recirculation damper servo sub-assembly

- Air conditioning harness assembly

- Air conditioning amplifier assembly

Stored

(30 seconds or more)

-


B1443/43

Air Outlet Damper Control Servo Motor Circuit

- Damper servo sub-assembly (mode damper servo)

- Air conditioning harness assembly

- Air conditioning amplifier assembly

Stored

(30 seconds or more)

-


B1446/46

Air Mix Damper Control Servo Motor Circuit (Driver Side)

- Damper servo sub-assembly (driver side air mix damper servo)

- Air conditioning harness assembly

- Air conditioning amplifier assembly

Stored

(30 seconds or more)

-


B1497/97

BUS IC Communication Malfunction

- Air conditioning harness assembly

- Air conditioning amplifier assembly

Stored

(10 seconds or more)

-


B14A2

Driver Side Solar Sensor Short Circuit

- Automatic light control sensor (solar sensor)

- Harness or connector

- Main body ECU (multiplex network body ECU)

- Air conditioning amplifier assembly

Stored

(4 seconds or more)

If the check is performed in a dark place, DTC B14A3 (front passenger side solar sensor short circuit) may also be stored.


B14A3

Front Passenger Side Solar Sensor Short Circuit

- Automatic light control sensor (solar sensor)

- Harness or connector

- Main body ECU (multiplex network body ECU)

- Air conditioning amplifier assembly

Stored

(4 seconds or more)

If the check is performed in a dark place, DTC B14A2 (driver side solar sensor short circuit) may also be stored.


U0100

Lost Communication with ECM

- CAN communication system

- ECM

-

-


U0142

Lost Communication with Main Body ECU

- CAN communication system

- Main body ECU (multiplex network body ECU)

-

-


U0155

Lost Communication with Combination Meter

- CAN communication system

- Combination meter assembly

-

-


Dtc Check / Clear
DTC CHECK / CLEAR 1. CHECK FOR DTC (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Air Con ...

Lost Communication with ECM (U0100,U0142,U0155)
DESCRIPTION The air conditioning amplifier communicates with the ECM, main body ECU (multiplex network body ECU) and combination meter through the CAN communication system. DTC Code ...

Other materials about Toyota 4Runner:

AUTO LSD Indicator Light does not Come ON
DESCRIPTION The AUTO LSD does not operate even if the VSC OFF switch is pressed under the following conditions: The brake system is faulty. The temperature inside the hydraulic brake booster increases and the AUTO LSD operation is suspended. ...

Rear window wiper and washer
Before operating the rear window wiper and washer switch, make sure the back window is completely closed.  The wiper operation is selected by moving the lever as follows: Type A 1. Intermittent window wiper operation 2. Normal window wiper opera ...

© 2016-2020 | www.to4runner.net

0.0058