- Ignition switch ON (engine is stopped)
- Active Test "Electromagnetic Oil Pump" being performed
| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000002EMAB |
| Model Year Start: 2024 | Model: RAV4 | Prod Date Range: [10/2023 - ] |
| Title: STOP AND START: STOP AND START SYSTEM: P279614; Electromagnetic Oil Pump Circuit Open; 2024 MY RAV4 [10/2023 - ] | ||
|
DTC |
P279614 |
Electromagnetic Oil Pump Circuit Open |
DESCRIPTION
Refer to DTC P279612.
Click here
![2024 MY RAV4 [10/2023 - ]; STOP AND START: STOP AND START SYSTEM: P279612; Electromagnetic Oil Pump Circuit Short to Battery](/t3Portal/stylegraphics/info.gif)
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Warning Indicate |
Note |
|---|---|---|---|---|---|---|
|
P279614 |
Electromagnetic Oil Pump Circuit Open |
Both of the following conditions are met for 0.16 seconds or more (2 trip detection logic):
|
|
Does not come on |
Does not come on |
SAE Code: P2798 |
CONFIRMATION DRIVING PATTERN
CONFIRMATION AFTER TROUBLESHOOTING
HINT:
-
If the cable is disconnected from the battery terminal, stop and start control is prohibited until refresh charge is completed.
In this case, let the vehicle idle to complete the refresh charge. The refresh charge is complete when the Data List item "Status of Battery Charge Control" changes from "Refresh Charge Mode". (Usually, idling the engine for 5 to 60 minutes with the battery fluid temperature at 11°C (51°F) or higher, the refresh charge will be completed.)
-
If the Techstream is not available and the Data List item "Status of Battery Charge Control" cannot be checked, charge the battery by idling the engine for approximately 5 to 60 minutes or driving the vehicle, and then drive the vehicle and check that stop and start control operates.
If the engine is started with the hood open, the system determines that a jump start has occurred. Therefore, make sure that the hood is closed before starting the engine and driving the vehicle.
- After the refresh charge completes, turn the ignition switch off, wait for at least 30 seconds, and then start the engine again. If the vehicle enters refresh charge mode again while the engine is idling, the initial refresh charge did not properly complete, so wait for the refresh charge to complete.
- Allow the engine to idle for 3 minutes after it is warmed up and check that the engine idle speed is within 50 rpm of the target idle speed.
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Clear the DTCs.
Powertrain > Stop and Start > Clear DTCs
(e) Start the engine and warm it up.
(f) Drive the vehicle at 7 km/h (4 mph) or more.
CAUTION:
When performing Confirmation Driving Pattern, obey all speed limits and traffic laws.
(g) Depress the brake pedal and stop the vehicle.
(h) Keep the engine stopped by stop and start control. (Keep the shift lever in D.)
(i) Release the brake pedal with the shift lever in D to start the engine.
(j) Check that no DTCs are output.
Powertrain > Stop and Start > Trouble Codes
STOP AND START SYSTEM OPERATION CHECK
Click here
WIRING DIAGRAM
Refer to DTC P279612.
Click here
CAUTION / NOTICE / HINT
NOTICE:
-
Before replacing the engine stop and start ECU, read the number of starter operations and write it into a new engine stop and start ECU.
Click here
-
After replacing the engine stop and start ECU or air conditioning amplifier assembly, reset and perform learning of the air conditioning information in the engine stop and start ECU.
Click here
-
After replacing the engine stop and start ECU or airbag ECU assembly, clear and calibrate the deceleration sensor zero point in the engine stop and start ECU.
Click here
-
When the engine stop and start ECU or oil pump with solenoid assembly is replaced, check the oil pump with solenoid assembly.
Click here
HINT:
-
Using the Techstream, read the freeze frame data before troubleshooting. System condition information is recorded as freeze frame data the moment a DTC is stored. This information can be useful when troubleshooting.
Click here
-
DTCs for the stop and start system are not cleared even if the malfunction has been repaired. After repairing the malfunction, be sure to clear the DTCs.
Click here
PROCEDURE
|
1. |
CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P279614) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Powertrain / Stop and Start / Trouble Codes.
(e) Read the DTCs
Powertrain > Stop and Start > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
DTC P279614 is output |
A |
|
DTCs P279614 and P323A19 are output |
B |
| B |
|
|
|
2. |
CHECK ENGINE STOP AND START ECU (EGND TERMINAL WAVEFORM) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
HINT:
Do not start the engine.
(c) Turn the Techstream on.
(d) Connect an oscilloscope to the EGND and GND1 terminals of the engine stop and start ECU connectors.
|
*a |
Component with harness connected (Engine Stop and Start ECU) |
- |
- |
(e) Enter the following menus: Powertrain / Stop and Start / Active Test / Electromagnetic Oil Pump.
Powertrain > Stop and Start > Active Test
|
Tester Display |
|---|
|
Electromagnetic Oil Pump |
|
(f) Check the waveform while performing the Active Test.
Standard: The waveform is similar to that shown in the illustration. |
|
|
Result |
Proceed to |
|---|---|
|
Constant value below 1 V |
A |
|
Constant value between 10 to 14 V |
B |
|
Waveform output as in illustration |
C |
| B |
|
| C |
|
|
|
3. |
CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - BODY GROUND) |
|
*a |
Component with harness connected (Engine Stop and Start ECU) |
- |
- |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A32-8 (EGND) - Body ground |
Ignition switch off |
10 kΩ or higher |
| NG |
|
|
|
4. |
CHECK TERMINAL VOLTAGE (EMP+ TERMINAL) |
|
*a |
Front view of wire harness connector (to Transmission Wire) |
(a) Disconnect the transmission wire connector.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
HINT:
Do not start the engine.
(d) Turn the Techstream on.
(e) Enter the following menus: Powertrain / Stop and Start / Active Test / Electromagnetic Oil Pump.
Powertrain > Stop and Start > Active Test
|
Tester Display |
|---|
|
Electromagnetic Oil Pump |
(f) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C30-29 (EMP+) - Body ground |
|
10 to 14 V |
| NG |
|
|
|
5. |
INSPECT TRANSMISSION WIRE (OIL PUMP WITH SOLENOID ASSEMBLY) |
(a) Disconnect the transmission wire connector.
|
*a |
Component without harness connected (Transmission Wire) |
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
29 (EMP+) - 28 (EMP-) |
20°C (68°F) |
5.0 to 5.6 Ω |
| OK |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE STOP AND START ECU - TRANSMISSION WIRE) |
|
|
6. |
INSPECT OIL PUMP WITH SOLENOID ASSEMBLY |
(a) Inspect the oil pump with solenoid assembly.
-
for 2WD:
Click here
-
for AWD:
Click here
| OK |
|
REPLACE TRANSMISSION WIRE
|
| NG |
|
REPLACE OIL PUMP WITH SOLENOID ASSEMBLY
|
|
7. |
CHECK TERMINAL VOLTAGE (EMOP TERMINAL) |
|
*a |
Component with harness connected (Engine Stop and Start ECU) |
- |
- |
(a) Disconnect the transmission wire connector.
(b) Connect the Techstream to the DLC3.
(c) Turn the ignition switch to ON.
HINT:
Do not start the engine.
(d) Turn the Techstream on.
(e) Enter the following menus: Powertrain / Stop and Start / Active Test / Electromagnetic Oil Pump.
Powertrain > Stop and Start > Active Test
|
Tester Display |
|---|
|
Electromagnetic Oil Pump |
(f) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A32-9 (EMOP) - Body ground |
|
10 to 14 V |
| OK |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR (ENGINE STOP AND START ECU - TRANSMISSION WIRE) |
| NG |
|
|
8. |
CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - BODY GROUND) |
(a) Disconnect the engine stop and start ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A32-8 (EGND) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
|
|
9. |
CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - TRANSMISSION WIRE) |
(a) Disconnect the engine stop and start ECU connector.
(b) Disconnect the transmission wire connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A32-8 (EGND) or C30-28 (EMP-) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
REPLACE TRANSMISSION WIRE
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
10. |
CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - BODY GROUND) |
|
*a |
Component with harness connected (Engine Stop and Start ECU) |
- |
- |
(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A32-9 (EMOP) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
|
|
11. |
CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - TRANSMISSION WIRE) |
|
*a |
Front view of wire harness connector (to Engine Stop and Start ECU) |
(a) Disconnect the engine stop and start ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A32-9 (EMOP) - A32-8 (EGND) |
20°C (68°F) |
5.0 to 5.6 Ω |
| NG |
|
|
|
12. |
CHECK ENGINE STOP AND START ECU |
|
*a |
Component without harness connected (Engine Stop and Start ECU) |
- |
- |
(a) Disconnect the engine stop and start ECU connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A32-9 (EMOP) - A32-8 (EGND) |
Always |
10 kΩ or higher |
| OK |
|
| NG |
|
|
13. |
CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - TRANSMISSION WIRE) |
(a) Disconnect the engine stop and start ECU connector.
(b) Disconnect the transmission wire connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A32-8 (EGND) - C30-28 (EMP-) |
Always |
Below 1 Ω |
|
A32-9 (EMOP) - C30-29 (EMP+) |
Always |
Below 1 Ω |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
14. |
INSPECT OIL PUMP WITH SOLENOID ASSEMBLY |
(a) Inspect the oil pump with solenoid assembly.
-
for 2WD:
Click here
-
for AWD:
Click here
| OK |
|
REPLACE TRANSMISSION WIRE
|
| NG |
|
REPLACE OIL PUMP WITH SOLENOID ASSEMBLY
|
|
15. |
CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - BODY GROUND) |
|
*a |
Component with harness connected (Engine Stop and Start ECU) |
- |
- |
(a) Disconnect the transmission wire connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A32-9 (EMOP) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
REPLACE TRANSMISSION WIRE
|
|
|
16. |
CHECK HARNESS AND CONNECTOR (ENGINE STOP AND START ECU - TRANSMISSION WIRE) |
(a) Disconnect the engine stop and start ECU connector.
(b) Disconnect the transmission wire connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A32-9 (EMOP) or C30-29 (EMP+) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|