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.

Smart Key System (for Start Function)

DTC Code

Detection Item

Trouble Area

See page

B2271

Ignition Hold Monitor Malfunction

- AM2 fuse

- Main body ECU (Driver side junction block assembly) (IG1 relays)

- No. 1 integration relay (IG2 relay)

- Power management control ECU

- Harness or connector


B2274

ACC Monitor Malfunction

- AM2 fuse

- Main body ECU (Driver side junction block assembly) (ACC relay)

- Power management control ECU

- Harness or connector


B2277

Detecting Vehicle Submersion

- Submerged power management control ECU

- Power management control ECU


B2282

Vehicle Speed Signal Malfunction

- CAN communication system

- Power management control ECU

- Meter/gauge system

- Harness or connector


B2283

Vehicle Speed Sensor Malfunction

- Power management control ECU

- Meter/gauge system

- Skid control ECU

- Speed sensor

- Harness or connector


B2284

Brake Signal Malfunction

- STOP fuse

- AM2 fuse

- Stop light switch assembly

- Engine control system

- Power management control ECU

- Harness or connector


B2285

Steering Lock Position Signal Circuit Malfunction

- AM2 fuse

- Steering lock actuator assembly (Steering lock ECU)

- LIN communication system

- Power management control ECU

- Harness or connector


B2286

Runnable Signal Malfunction

- AM2 fuse

- Engine control system

- Power management control ECU

- Harness or connector


P0335

Crankshaft Position Sensor Circuit Malfunction (NE Signal)

- AM2 fuse

- Engine control system

- Power management control ECU

- Harness or connector


U0100

Lost Communication with ECM / PCM

- CAN communication system

- ECM


U0129

Lost Communication with Brake System Control Module

- CAN communication system

- Skid control ECU


U0142

Lost Communication with Main Body ECU

- CAN communication system

- Main body ECU (Driver side junction block assembly)


U0155

Lost Communication with Combination Meter

- CAN communication system

- Combination meter assembly


Detecting Vehicle Submersion (B2277)
DESCRIPTION This DTC is stored when a malfunction in the submersion monitor circuit inside the power management control ECU is detected. HINT: When the power management control ECU is replaced wi ...

Steering Lock Position Signal Circuit Malfunction (B2285)
DESCRIPTION The power management control ECU and steering lock actuator (steering lock ECU) are connected by a cable and the LIN communication line. This DTC is stored when the steering lock posi ...

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