PARTS LOCATION
ILLUSTRATION

System Diagram
SYSTEM DIAGRAM
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Related Tacoma materials
Open in Front Floor Electrical Key Oscillator Circuit (B27A5)
DESCRIPTION
The certification ECU (smart key ECU assembly) generates a request signal and
transmits the signal to the No. 1 indoor electrical key antenna assembly (front
floor). For the No. 1 indoor electrical key antenna assembly (front floor) to detect
when the electrical key transmitter su ...
Driver Side Door Entry Lock and Unlock Functions do not Operate
DESCRIPTION
If the entry lock and unlock functions do not operate for the driver door only,
the request code may not be being transmitted from the driver door or the front
door outside handle assembly LH (touch sensor) may be malfunctioning. If the entry
functions for other doors operate prop ...
Brake Switch "A" Signal Compare Failure (P057162)
DESCRIPTION
When the brake pedal is depressed, the stop light switch assembly sends a signal
to the ECM. When the ECM receives this signal, it cancels the dynamic radar cruise
control. The fail-safe function operates to enable normal driving even if there
is a malfunction in the stop light si ...
