Toyota 2GR-FE Manual page 446

ES–290
4
CHECK COMBINATION METER ASSEMBLY (SPD SIGNAL WAVEFORM)
Wire Harness Side:
Combination Meter Connector
ES
0 to 12 V
0 V
Turn Wheel
OK
5
CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - ECM)
Wire Harness Side:
Combination Meter Connector
F2
+S
ECM Connector
A55
Front View
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
(a) Shift the transmission gear selector lever to the neutral
position.
(b) Jack up the vehicle.
(c) Turn the ignition switch on (IG).
(d) Measure the voltage between the terminal of the
combination meter and body ground while the wheel is
turned slowly.
Standard voltage
F2
+S
HINT:
The output voltage should fluctuate up and down,
similarly to the diagram, when the wheel is turned slowly.
NG
A132287E01
(a) Disconnect the F2 combination meter connector.
(b) Disconnect the A55 ECM connector.
(c) Measure the resistance.
Standard resistance (Check for open)
Standard resistance (Check for short)
Front View
(d) Reconnect the combination meter connector.
(e) Reconnect the ECM connector.
NG
SPD
A132288E02
Tester Connection
F2-12 (+S) - Body ground
REPLACE COMBINATION METER
ASSEMBLY (See page ME-63)
Tester Connection
+S (F2-12) - SPD (A55-8)
Tester Connection
+S (F2-12) or SPD (A55-8) - Body ground
REPAIR OR REPLACE HARNESS OR
CONNECTOR
Specified Condition
Voltage generated intermittently
Specified Condition
Below 1 Ω
Specified Condition
10 kΩ or higher