| Last Modified: 04-05-2023 | 6.11:8.1.0 | Doc ID: RM100000000VI9W |
| Model Year Start: 2016 | Model: Sienna | Prod Date Range: [12/2015 - 08/2016] |
| Title: 2GR-FE (ENGINE CONTROL): SFI SYSTEM: Fuel Pump Control Circuit; 2016 MY Sienna [12/2015 - 08/2016] | ||
|
Fuel Pump Control Circuit |
DESCRIPTION
Refer to DTC P0230 (See page
![2016 MY Sienna [12/2015 - 08/2016]; 2GR-FE (ENGINE CONTROL): SFI SYSTEM: P0230; Fuel Pump Primary Circuit+](/t3Portal/stylegraphics/info.gif)
).
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
|
1. |
CHECK FUEL PUMP OPERATION |
(a) Check the fuel pump operation (See page
).
| NG |
|
|
|
2. |
INSPECT FUEL PMP RELAY |
(a) Inspect the FUEL PMP relay (See page
).
| NG |
|
REPLACE F/PMP RELAY |
|
|
3. |
INSPECT FUEL PUMP RESISTOR |
(a) Inspect the fuel pump resistor (See page
).
| NG |
|
|
|
4. |
CHECK HARNESS AND CONNECTOR (FUEL PMP RELAY - FUEL PUMP RESISTOR) |
(a) Remove the FUEL PMP relay from the engine room relay block.
(b) Disconnect the A29 fuel pump resistor connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
5 (F/PMP relay holder) - A29-1 (+B) |
Always |
Below 1 Ω |
|
4 (F/PMP relay holder) - A29-2 (FP) |
Always |
Below 1 Ω |
|
5 (F/PMP relay holder) or A29-1 (+B) - Body ground |
Always |
10 kΩ or higher |
|
4 (F/PMP relay holder) or A29-2 (FP) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
5. |
PERFORM ACTIVE TEST USING TECHSTREAM (OPERATE C/OPN RELAY) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON and turn the Techstream on.
(c) Enter the following menus: Powertrain / Engine / Active Test / Activate the Fuel Pump Speed Control.
(d) Check the operation of the relay while operating it using the Techstream.
OK:
Operating noise can be heard from the relay.
| NG |
|
|
|
6. |
INSPECT FUEL PUMP |
(a) Inspect the fuel pump (See page
).
HINT:
Perform "Inspection After Repair" after replacing the fuel pump (See page
).
| NG |
|
|
|
7. |
CHECK HARNESS AND CONNECTOR (FUEL PUMP - FUEL PMP RELAY) |
(a) Disconnect the g2 fuel pump connector.
(b) Remove the FUEL PMP relay from the engine room relay block.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
g2-4 (B) - 4 (FUEL PMP relay holder) |
Always |
Below 1 Ω |
|
g2-4 (B) or 4 (FUEL PMP relay holder) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
8. |
INSPECT ENGINE ROOM RELAY BLOCK (C/OPN RELAY - FUEL PMP RELAY) |
|
(a) Remove the C/OPN relay from the engine room relay block. |
|
(b) Remove the FUEL PMP relay from the engine room relay block.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
3 (C/OPN relay holder) - 2 (F/PMP relay holder) |
Always |
Below 1 Ω |
|
3 (C/OPN relay holder) - 3 (F/PMP relay holder) |
Always |
Below 1 Ω |
|
3 (C/OPN relay holder) or 2 (FUEL PMP relay holder) - Body ground |
Always |
10 kΩ or higher |
|
3 (C/OPN relay holder) or 3 (FUEL PMP relay holder) - Body ground |
Always |
10 kΩ or higher |
Text in Illustration
|
*a |
C/OPN relay holder |
|
*b |
F/PMP relay holder |
| NG |
|
REPLACE ENGINE ROOM RELAY BLOCK |
|
|
9. |
CHECK HARNESS AND CONNECTOR (FUEL PUMP - BODY GROUND) |
(a) Disconnect the g2 fuel pump connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance (Check for Open):
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
g2-5 (E) - Body ground |
Always |
Below 1 Ω |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
10. |
CHECK FUEL LINE |
(a) Check the fuel lines for leaks or blockage.
OK:
No leaks or blockage
| OK |
|
REPAIR OR REPLACE FUEL SYSTEM (PRESSURE REGULATOR AND FUEL FILTER) |
| NG |
|
REPAIR OR REPLACE FUEL LINE |
|
11. |
INSPECT C/OPN RELAY |
(a) Inspect the C/OPN relay (See page
).
| NG |
|
REPLACE C/OPN RELAY |
|
|
12. |
CHECK HARNESS AND CONNECTOR (C/OPN RELAY VOLTAGE) |
|
(a) Remove the C/OPN relay from the engine room relay block. |
|
(b) Turn the ignition switch to ON.
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
5 (C/OPN relay holder) - Body ground |
Ignition switch ON |
11 to 14 V |
|
1 (C/OPN relay holder) - Body ground |
Ignition switch ON |
11 to 14 V |
Text in Illustration
|
*a |
C/OPN relay holder |
| NG |
|
REPLACE ENGINE ROOM RELAY BLOCK |
|
|
13. |
CHECK HARNESS AND CONNECTOR (C/OPN RELAY - ECM) |
(a) Remove the C/OPN relay from the engine room relay block.
(b) Disconnect the A39 ECM connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
2 (C/OPN relay holder) - A39-52 (FC) |
Always |
Below 1 Ω |
|
2 (C/OPN relay holder) or A39-52 (FC) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|