Toyota 4Runner: Diagnostic Trouble Code Chart

Toyota 4Runner Service Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Smart Key System(for Start Function) / 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
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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