Toyota 2GR-FE Manual page 451

OK
4
CHECK ECM (STP, ST1 - VOLTAGE)
Brake Pedal Brake Pedal
Depressed
Released
Wire Harness Side Front View:
ECM Connector
A55
ST1-
OK
REPLACE ECM (See page ES-518)
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
NG
(a) Disconnect the A55 ECM connector.
(b) Measure the voltage according to the value(s) in the
table below.
Standard voltage
STP (A55-36) - Body ground
STP (A55-36) - Body ground
ST1- (A55-35) - Body ground
ST1- (A55-35) - Body ground
NG
STP
A112585E08
REPLACE STOP LIGHT SWITCH ASSEMBLY
(See page LI-125)
Tester Connection
REPAIR OR REPLACE HARNESS OR
CONNECTOR
Brake Pedal
Specified Condition
Operation
Depressed 9 to 14 V
Released 0 to 3 V
Depressed 0 to 3 V
Released 9 to 14 V
ES–295
ES