THEFT DETERRENT / KEYLESS ENTRY: SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Start Function): B2271:
Ignition Hold Monitor Malfunction
B2271 - Ignition Hold Monitor Malfunction
DESCRIPTION
This DTC is stored when a problem such as an open in the AM2 fuse, an open or short in the wire harness between the fuse and power management
control ECU, a short in the IG output circuit inside the power management control ECU, a short between the power management control ECU and
relay, or a short in the relay is detected.
WIRING DIAGRAM
INSPECTION PROCEDURE
NOTICE:
* When the power management control ECU is replaced with a new one and the cable from the negative (-) battery terminal is
connected, the power source mode becomes the on (IG) mode. When the battery is removed and reinstalled, the power source
mode that was selected when the battery was removed is restored.
* Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
1. CHECK HARNESS AND CONNECTOR (BATTERY - POWER MANAGEMENT CONTROL ECU)
(a) Disconnect the F8 connector from the power management control ECU.
(b) Measure the voltage according to the value(s) in the table below.
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