Toyota 2GR-FE Manual page 587

20
INSPECT CANISTER PUMP MODULE (VENT VALVE OPERATION)
Charcoal Canister Assembly:
Result
Test Results
Operating
Not operating
A
21
CHECK HARNESS AND CONNECTOR (ECM - CANISTER PUMP MODULE)
Wire Harness Side:
A55
ECM Connector
VPMP
Front View
Canister Pump Module Connector
1 2 3 4 5
N17
6 7 8 9 10
VGND Front View
Result
Test Results
Below 1 Ω
10 kΩ or higher
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
(a) Turn the ignition switch off.
(b) Disconnect the N17 canister pump module connector.
(c) Apply battery voltage to the VLVB and VGND terminals
VGND (-)
of the canister pump module.
VLVB (+)
(d) Touch the canister pump module to confirm the vent
valve operation.
A112598E01
1. Wire harness between vent valve and ECM
2. ECM
Vent valve
(e) Reconnect the canister connector.
B
(a) Disconnect the A55 ECM connector.
(b) Disconnect the N17 canister pump module connector.
(c) Measure the resistance between the VPMP terminal of
the ECM connector and the VGND terminal of the
canister pump module connector.
A112621E15
ECM
Wire harness between ECM and canister pump module
Suspected Trouble Areas
Go to step 29
Suspected Trouble Areas
ES–431
ES
Proceed to
A
B
Proceed to
A
B