P3175

L110F HYBRID VEHICLE CONTROL: HYBRID CONTROL SYSTEM: P3175-862: Transmission Oil Pump Motor Coil Temperature Sensor Circuit
P3175-862 - Transmission Oil Pump Motor Coil Temperature Sensor Circuit

DESCRIPTION

Refer to the wiring diagram for DTC P3176-863 P3176.





WIRING DIAGRAM

Refer to the wiring diagram for DTC P3176-863 P3176.

INSPECTION PROCEDURE

HINT
The characteristics of the oil pump motor temperature sensor resistance (reference values) are as follows:





PROCEDURE

1. CLEAR DTC

(a) Connect the Techstream to the DLC3.

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

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

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

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

(f) Clear DTCs and freeze frame data.

NEXT -- Continue to next step.

2. READ VALUE USING TECHSTREAM (OPM TEMPERATURE)

(a) Select the following menu items: Powertrain / Hybrid Control / Data List / OPM Temperature.

(b) Read the data list.

Result:





B -- CHECK FOR INTERMITTENT PROBLEMS Check for Intermittent Problems
A -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR

(a) Turn the power switch off.





(b) Disconnect connectors E55 and A74 from the hybrid vehicle control ECU.

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

Standard resistance (Check for short):





Standard resistance:





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

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

Standard voltage:





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

NG -- CHECK OIL WITH MOTOR PUMP ASSEMBLY (OIL PUMP MOTOR TEMPERATURE SENSOR)

OK -- REPLACE HYBRID VEHICLE CONTROL ECU Service and Repair

4. CHECK OIL WITH MOTOR PUMP ASSEMBLY (OIL PUMP MOTOR TEMPERATURE SENSOR)

(a) Turn the power switch off.





(b) Disconnect the oil pump motor temperature sensor connector.

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





Standard resistance (Check for short):





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

Standard resistance:





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

(f) 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 temperature sensor connector disconnected causes other DTCs to be stored. Clear the DTCs after performing this inspection.

NG -- REPLACE OIL WITH MOTOR PUMP ASSEMBLY Components

OK -- REPAIR OR REPLACE HARNESS OR CONNECTOR