DTC P3176-863: Transmission Oil Pump Motor Coil Temperature Sensor Circuit Low: Procedure

1. Turn the power switch on (IG).
2. Read and record the DTCs and freeze frame data.
3. Select the following menu items: DIAGNOSIS / OBD/MOBD / HV ECU / DTC INFO / CLEAR CODES.
4. Clear the DTCs.
   NOTE:

   Make sure to record DTCs and freeze frame data before clearing DTCs.

NEXT: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Select the following menu items: Powertrain / Hybrid Control / Data List / OPM Temperature.
4. Read the data list.

   Result

   Tester Display	Proceed to
   200°C	A
   Value equivalent to the actual temperature	B

   HINT: 

   It is possible for the hybrid vehicle control ECU to detect P3176-863 when the power switch is on (READY), after at least 15 minutes have elapsed with the engine not running and the shift lever in a position other than P or N. This code can be detected within a single trip (1 trip).

B → CHECK FOR INTERMITTENT PROBLEMS 

A: Go to next step 

1. Turn the power switch off.
2. Disconnect connector E84 from the hybrid vehicle control ECU.
   Fig 1: Disconnecting Connector E84 From Hybrid Vehicle Control ECU

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Measure the resistance according to the value(s) in the table below.
   Fig 2: Identifying E84 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance

   Tester Connection	Specified Condition
   TOPM (E84-53) - Except for E2 (E84-54)	10 kΩ or more
   TOPM (E84-53) - E2 (E84-54)	121 to 129.7 kΩ at 20°C (68°F)
   OMT (E86-1) - OMTG (E86-2)	50.49 to 55.01 kΩ at 40°C (104°F)
   OMT (E86-1) - OMTG (E86-2)	11.26 to 12.99 kΩ at 80°C (176°F)

OK → See step   5 

NG: Go to next step 

1. Turn the power switch off.
   Fig 3: Locating Oil Pump Motor Temperature Sensor Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the oil pump motor temperature sensor connector.
3. Measure the resistance according to the value(s) in the table below.
   Fig 4: Identifying E86 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard resistance

   Tester Connection	Specified Condition
   OMT (E86-1) - Body ground	10 kΩ or more
   OMT (E86-1) - OMTG (E86-2)	121 to 129.7 kΩ at 20°C (68°F)
   OMT (E86-1) - OMTG (E86-2)	50.49 to 55.01 kΩ at 40°C (104°F)
   OMT (E86-1) - OMTG (E86-2)	11.26 to 12.99 kΩ at 80°C (176°F)

NG → See step   6 

OK → REPAIR OR REPLACE HARNESS OR CONNECTOR