Toyota 2GR-FE Manual page 914

ST–52
3
INSPECT MAIN BODY ECU
Main Body ECU
OK
4
CHECK MAIN BODY ECU OPERATION
OK
END (MAIN BODY ECU DEFECTIVE)
ST
2GR-FE STARTING – SMART KEY SYSTEM
(a) Reconnect the connectors.
(b) Measure the voltage according to the value(s) in the
E9
STSW
B138004E01
(a) After replacing the main body ECU with a normally
table below.
Standard voltage
Terminal No. (Symbol)
Brake pedal depressed,
E9-4 (STSW) - Body
Engine switch hold on
ground
NG
REPLACE MAIN BODY ECU
functioning ECU, check that the engine can start.
OK:
Engine can start normally.
NG
GO TO ENGINE CONTROL SYSTEM
Condition Specified Condition
Output voltage at
terminal AM1 or AM2 is
(ST) -2 V or more.