Toyota 2GR-FE Manual page 486

ES–330
WIRING DIAGRAM
C5
Throttle Actuator
M+
M-
ES
INSPECTION PROCEDURE
HINT:
• Read freeze frame data using an intelligent tester. The ECM records vehicle and driving condition
information as freeze frame data the moment a DTC is stored. When troubleshooting, freeze frame
data can be helpful in determining whether the vehicle was running or stopped, whether the engine
was warmed up or not, whether the air-fuel ratio was lean or rich, as well as other data recorded at the
time of a malfunction (See page ES-45).
• The throttle actuator current (THROTTLE MOT) and the throttle actuator duty ratio (THROTTLE OPN /
THROTTLE CLS) can be read using the intelligent tester. However, the ECM shuts off the throttle
actuator current when the ETCS malfunctions.
1
INSPECT THROTTLE BODY (RESISTANCE OF THROTTLE CONTROL MOTOR)
Component Side:
C5
OK
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
Shielded
2
1
Throttle Body
M+ M-
A059778E40
19
C55
18
C55
41
C55 GE01
(a) Disconnect the C5 throttle body connector.
(b) Measure the resistance according to the value(s) in the
table below.
Standard resistance
Tester Connection
M+ (C5-2) - M- (C5-1)
(c) Reconnect the throttle body connector.
NG
REPLACE THROTTLE BODY (See page
503)
ECM
M+
Throttle Actuator
Control Circuit
M-
Condition Specified Condition
0.3 to 100 Ω
20°C (68°F)
A133860E01
ES-