Toyota 2GR-FE Manual page 435

INSPECTION PROCEDURE
NOTICE:
• When a vehicle is brought into a workshop, leave it as it is. Do not change the vehicle
condition. For example, do not tighten the fuel tank cap.
• Do not disassemble the pump module.
• The intelligent tester is required to conduct the following diagnostic troubleshooting
procedure.
1
CHECK HARNESS AND CONNECTOR (PUMP MODULE - ECM)
Wire Harness Side:
VOUT
SGND
N17
Canister Pump Module Connector
A
2
REPLACE CHARCOAL CANISTER ASSEMBLY
2GR-FE ENGINE CONTROL SYSTEM – SFI SYSTEM
(a) Disconnect the N17 canister connector.
(b) Turn the ignition switch on (IG).
(c) Measure the voltage and resistance according to the
value(s) in the table below.
Standard voltage
Result
Test Result
Voltage and resistance
within standard ranges
Voltage and resistance
outside standard ranges
(d) Reconnect the canister connector.
VCC
B
A135029E01
(a) Replace the canister assembly (See page EC-9).
NOTICE:
When replacing the canister, check the canister
pump module interior and related pipes for water,
fuel and other liquids. If liquids are present, check
for disconnections and/or cracks in the following: 1)
the pipe from the air inlet port to the canister pump
module; 2) the canister filter; and 3) the fuel tank
vent hose.
Tester Connection
N17-4 - Body ground
N17-3 - Body ground
N17-2 - Body ground
Suspected Trouble Area
Open in pressure sensor
circuit
Open in wire harness/
connector (ECM -
pressure sensor)
Go to step 3
ES–279
ES
Specified Condition
4.5 to 5.0 V
4.5 to 5.0 V
100 Ω or less
Proceed to
A
B