Toyota FJ Cruiser (GSJ 10, 15 series). Instruction - part 71

1GR-FE ENGINE CONTROL SYSTEM  –  SFI SYSTEM

ES–239

ES

(c) Turn the tester ON.
(d) Select the following menu items: DIAGNOSIS / 

ENHANCED OBD II / DTC INFO / CURRENT CODES.

(e) Read DTCs.
(f)

Select the following menu items: DIAGNOSIS / 
ENHANCED OBD II / DATA LIST / EVAP / VAPOR 
PRESS.

(g) Read the EVAP (Evaporative Emission) pressure 

displayed on the tester.

Result

B

C

A

(a) Turn the ignition switch OFF.
(b) Disconnect the E47 ECM connector.
(c) Check the resistance between PPMP terminal of the 

ECM connector and the body ground.

Result

(d) Reconnect the ECM connector.

B

A

Display (DTC 

Output)

Test Results

Suspected Trouble Areas

Proceed To

P0451

-

Canister pressure sensor

C

P0452

Less than 45 kPa-a (430 mmHg-a)

•

Wire harness/connector (ECM - Canister 
pressure sensor)

•

Canister pressure sensor

•

Short in ECM circuit

A

P0453

More than 120 kPa-a (900 mmHg-a)

•

Wire harness/connector (ECM - Canister 
pressure sensor)

•

Canister pressure sensor

•

Open in ECM circuit

B

              Go to step 4

GO TO EVAP SYSTEM (See page 

ES-350

)

2

CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM)

ECM Connector

PPMP

E47

G035619E10

Test Results

Suspected Trouble Areas

Proceed To

10 

Ω or less

•

Wire harness/connector (ECM - Canister pressure 
sensor)

•

Short in canister pressure sensor circuit

A

10 k

Ω or more

•

Wire harness/connector (ECM - Canister pressure 
sensor)

•

Short in ECM circuit

B

              Go to step 7

ES–240

1GR-FE ENGINE CONTROL SYSTEM  –  SFI SYSTEM

ES

(a) Disconnect the L10 canister pump module connector.
(b) Disconnect the E47 ECM connector.
(c) Check the resistance between PPMP terminal of the 

ECM connector and the body ground.

Result

(d) Reconnect the canister pump module connector.
(e) Reconnect the ECM connector.

A

B

3

CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM)

PPMP

ECM Connector

L10

E47

A133461E01

Test Results

Suspected Trouble Areas

Proceed To

10 k

Ω or more

Short in canister pressure sensor circuit

A

10 

Ω or less

Short in wire harness/connector (ECM - Canister 
pressure sensor)

B

              Go to step 5

              Go to step 6

1GR-FE ENGINE CONTROL SYSTEM  –  SFI SYSTEM

ES–241

ES

(a) Disconnect the L10 canister pump module connector.
(b) Turn the ignition switch ON.
(c) Measure the voltage and resistance of the canister pump 

module connector.

Standard

Result

(d) Reconnect the canister pump module connector.

A

B

(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.

4

CHECK HARNESS AND CONNECTOR (CANISTER PUMP MODULE - ECM)

1 2 3 4 5
6 7 8 9 10

Canister Pump Module Connector

Front View

Wire Harness Side:

VOUT

VCC

SGND

L10

L10

A133462E01

Tester Connections

Specified Conditions

VCC (L10-4) - Body ground

4.5 to 5.5 V

VOUT (L10-3) - Body ground

4.5 to 5.5 V

SGND (L10-2) - Body ground

100 

Ω or less

Test Results

Suspected Trouble Areas

Proceed To

Voltage and resistance within standard ranges

Open in canister pressure sensor circuit

A

Voltage and resistance outside standard ranges

Open in wire harness/connector (ECM - Canister 
pressure sensor)

B

              Go to step 5

              Go to step 6

5

REPLACE CHARCOAL CANISTER ASSEMBLY

ES–242

1GR-FE ENGINE CONTROL SYSTEM  –  SFI SYSTEM

ES

NEXT

HINT:
If the exhaust tail pipe has been removed, go to the next step 
before reinstalling it.

NEXT

(a) Replace the ECM (See page 

ES-446

).

NEXT

(a) Connect the intelligent tester to the DLC3.
(b) Turn the ignition switch ON and turn the tester ON.
(c) Wait for at least 60 seconds.
(d) On the tester, select the following menu items: 

DIAGNOSIS / ENHANCED OBD II / DTC INFO / 
PENDING CODES.

Inspection Area*

Fuel Tank Vent Hose

Fuel Tank

*: Check for disconnection and/or cracks

Air Inlet Port

Inspection Area*

Canister Filter

Canister

Vent Hose

A112652E01

              Go to step 8

6

REPAIR OR REPLACE HARNESS OR CONNECTOR

              Go to step 8

7

REPLACE ECM

              Go to step 8

8

CHECK WHETHER DTC OUTPUT RECURS (AFTER REPAIR)