Part 2

L110F HYBRID VEHICLE CONTROL: HYBRID CONTROL SYSTEM: P0867-876, P0867-878, P0867-882, P0989-899: Transmission Fluid Pressure
P0989-899 - Transmission Fluid Pressure Sensor / Switch "E" Circuit Low





Standard resistance:





NG -- REPLACE RELAY (OIL PMP) Components
OK -- Continue to next step.

9. CHECK OIL WITH MOTOR PUMP ASSEMBLY

(a) Disconnect the connectors from the oil pump motor controller.





(b) Turn the power switch on (IG).

(c) Measure the voltage according to the value(s) in the table below.

Standard voltage:





NOTICE:
Turning the power switch on (IG) with the oil pump motor controller connectors disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

(d) Turn the power switch off.

(e) Measure the resistance according to the value(s) in the table below.

Standard resistance (Check for open):





Standard resistance (Check for short):





NG -- REPLACE OIL WITH MOTOR PUMP ASSEMBLY Components
OK -- Continue to next step.

10. CHECK OIL PUMP MOTOR CONTROLLER (POWER SOURCE CIRCUIT)

(a) Turn the power switch off.

(b) Disconnect connector A78 from the oil pump motor controller.

(c) Install the OIL PMP relay to the engine room No. 5 relay block.





(d) Turn the power switch on (IG).

(e) Measure the voltage according to the value(s) in the table below.





Standard voltage:





(f) Turn the power switch off.

(g) Remove the OIL PMP relay from the engine room No. 5 relay block.





(h) Measure the resistance according to the value(s) in the table below.





Standard resistance (Check for open):





Standard resistance (Check for short):





(i) Disconnect connector A74 from the hybrid vehicle control ECU.





(j) Turn the power switch off.

(k) Measure the resistance according to the value(s) in the table below.

Standard resistance (Check for open):





Standard resistance (Check for short):





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

11. READ VALUE USING TECHSTREAM (LINE PRESSURE)

(a) Connect connector A74 to the hybrid vehicle control ECU.





(b) Disconnect the transmission wire connector.

(c) Turn the power switch on (IG).

NOTICE:
Turning the power switch on (IG) with the hybrid vehicle control ECU connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

(d) Select the following menu items: Powertrain / Hybrid Control / Data List / Line Pressure.

(e) Read the data list.

OK:





NG -- CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - TRANSMISSION WIRE)
OK -- Continue to next step.

12. CLEAR DTC

(a) Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

(b) Read and record the DTCs and freeze frame data.

(c) Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

(d) Clear DTCs and freeze frame data.

NEXT -- Continue to next step.

13. READ VALUE USING TECHSTREAM (LINE PRESSURE SOLENOID, B2 OIL PRESSURE, LINE PRESSURE)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Select the following menu items: Powertrain / Hybrid Control / Data List / Line Pressure Solenoid, B2 Oil Pressure, Line Pressure.

(d) Check the data list items for approximately 8 seconds after pressing the power switch with the brake pedal depressed.





Result:





C -- REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Components

B -- CHECK CONNECTOR CONNECTION CONDITION (PB3 OIL PRESSURE SWITCH)
A -- Continue to next step.

14. SIMULATION TEST (OIL PUMP MOTOR)

(a) Turn the power switch on (IG).

(b) Select the following menu items: Powertrain / Hybrid Control / Active Test / Activate the Oil Pump (500rpm), Activate the Oil Pump (1000rpm).

(c) Select the following menu items: All Data / OPM Target Revolution, OPM Revolution.

(d) Perform the "Activate the Oil Pump (500rpm)" and "Activate the Oil Pump (1000rpm)" active tests.

OK:

"OPM Target Revolution" and "OPM Revolution" values are almost equal.

NOTICE:
Make sure that the auxiliary battery is not discharged.

NG -- REPLACE OIL WITH MOTOR PUMP ASSEMBLY Components
OK -- Continue to next step.

15. SIMULATION TEST (HYBRID VEHICLE TRANSMISSION ASSEMBLY)

(a) Select the following menu items: Powertrain / Hybrid Control / Data List / Line Pressure, Line Pressure Solenoid.

(b) Turn the power switch on (READY).

(c) 10 seconds later, read the data list.

OK:

"Line Pressure" remains OFF when "Line Pressure Solenoid" is ON.

(d) Select the following menu items: Powertrain / Hybrid Control / Trouble Codes.

(e) Check if DTCs are output.

OK:

DTCs are not output.

(f) Select the following menu items: Powertrain / Hybrid Control / Active Test / Control the Shift Position.

(g) Select the following menu items: All Data / B1 Oil Pressure, B2 Oil Pressure, Line Pressure, Line Pressure Solenoid.

(h) Perform the "Control the Shift Position" active test.

(i) Switch the shift position between "Lo" and "Hi" several times using the "Control the Shift Position" active test.

OK:





NOTICE:
Transmission system DTCs may be set if the "Control the Shift Position" active test is canceled before it is completed.

NG -- REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Components
OK -- Continue to next step.

16. CHECK FOR INTERMITTENT PROBLEMS

(a) Check for intermittent problems Check For Intermittent Problems.

NG -- REPAIR OR REPLACE MALFUNCTIONING PARTS, COMPONENT AND AREA
OK -- Continue to next step.

17. CHECK FLUID LEAKS

(a) Check for fluid leaks from the hybrid vehicle transmission assembly.

OK:

There are no fluid leaks.

NG -- REPAIR OR REPLACE HYBRID VEHICLE TRANSMISSION ASSEMBLY Components
OK -- Continue to next step.

18. CHECK CONNECTOR CONNECTION CONDITION (PB3 OIL PRESSURE SWITCH)

(a) Remove the oil strainer assembly Components.





(b) Check the connection of the PB3 oil pressure switch connector.

Result:

The connector is connected securely and there are no contact problems.

NG -- CONNECT SECURELY
OK -- Continue to next step.

19. CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE)

(a) Disconnect the transmission wire connector.





(b) Disconnect the connector from the PB3 oil pressure switch.

(c) Turn the power switch on (IG).

(d) Measure the voltage according to the value(s) in the table below.

Standard voltage:





NOTICE:
Turning the power switch on (IG) with the transmission wire connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

(e) Turn the power switch off.

(f) Measure the resistance according to the value(s) in the table below.





Standard resistance (Check for open):





Standard resistance (Check for short):





NG -- REPLACE TRANSMISSION WIRE Components

OK -- REPLACE PB3 OIL PRESSURE SWITCH Components

20. CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU - TRANSMISSION WIRE)