Dtc B2272 Ignition 1 Monitor Malfunction

Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - THEFT DETERRENT / KEYLESS ENTRY

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER (IG1 RELAY MONITOR (OUTSIDE))

CHECK WHETHER DTC OUTPUT RECURS

CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BATTERY AND BODY GROUND)

DTC B2272 Ignition 1 Monitor Malfunction

DESCRIPTION

This DTC is stored when a malfunction occurs in the IG1D output circuit, which is between the IG1 No. 3 relay actuation circuit inside the main body ECU and the IG1 No. 3 relay.

DTC CodeDetection ConditionTrouble Area
B2272The IG1 No. 3 relay actuation circuit inside the main body ECU or other related circuit is malfunctioning.
Main body ECU
Harness or connector

WIRING DIAGRAM

Dtc B2272 Ignition 1 Monitor Malfunction. THEFT DETERRENT / KEYLESS ENTRY. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

INSPECTION PROCEDURE

1.READ VALUE USING INTELLIGENT TESTER (IG1 RELAY MONITOR (OUTSIDE))

Use the Data List to check if the IG1 No. 3 relay is functioning properly.

Main Body
Tester DisplayMeasurement Item/RangeNormal ConditionDiagnostic Note
IG1 Relay Monitor (Outside)IG1 No. 3 relay outer relay monitor/ON or OFFON: Engine switch on (IG)
OFF: Engine switch off		-
  • OK:
  • When the engine switch is turned on (IG), ON is displayed on the intelligent tester.
NG
Go to step 3
OK
2.CHECK WHETHER DTC OUTPUT RECURS

Clear the DTCs ().

Turn the engine switch on (IG), wait at least 10 seconds, and check whether DTC B2272 is output.

Result
ResultProceed to
No DTC outputA
DTC B2272 outputB
B
REPLACE MAIN BODY ECU
A
USE SIMULATION METHOD TO CHECK ()
3.CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - BATTERY AND BODY GROUND)

Dtc B2272 Ignition 1 Monitor Malfunction. THEFT DETERRENT / KEYLESS ENTRY. Land Cruiser URJ200 URJ202 GRJ200 VDJ200

Disconnect the E1, 2A and 2D main body ECU connectors.

Measure the voltage and resistance according to the value(s) in the table below.

  • Standard Voltage:
  • Tester ConnectionConditionSpecified Condition
    2A-1 - Body groundAlways11 to 14 V
  • Standard Resistance:
  • Tester ConnectionConditionSpecified Condition
    E1-3 (IG1D) - 2D-43AlwaysBelow 1 Ω
    2D-62 (GND2) - Body groundAlwaysBelow 1 Ω
    E1-3 (IG1D) or 2D-43 - Body groundAlways10 kΩ or higher
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK
REPLACE MAIN BODY ECU