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Home >> Lexus >> 2022 >> LS 500h RWD >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (W/ Advanced Park) - Diagnostic Codes (5 Of 5) & Circuit Tests (1 Of 2) >> HYBRID CONTROL SYSTEM (w/ Advanced Park) >> DTC P2797-62: Auxiliary Transmission Fluid Pump Signal Compare Failure [11/2021 - 10/2023] >> Typical Enabling Conditions

Typical Enabling Conditions

CONDITION (A)

The monitor will run whenever the following DTCs are not present. P0C2B (INF P0C2B-31), P0C29 (INF P0C29-96) (Oil pump control circuit)
P0712 (INF P0710-11), P0713 (INF P0710-15) (ATF temperature sensor circuit (TFT sensor))
Power switch On (READY)
Driving mode EV
Time after pressure control at shifting end 5 sec. or more
Time after EV mode start 5 sec. or more
Solenoid (SLT) valve Not ON malfunction
CONDITION (B)

The monitor will run whenever the following DTCs are not present. P0712 (INF P0710-11), P0713 (INF P0710-15) (ATF temperature sensor circuit (TFT sensor))
P0722 (INF P0720-31), P077C (INF P0720-14), P077D (INF P0720-12) (Output speed sensor circuit)
P0748 (INF P0745-13) (Solenoid (SL1) valve circuit)
P0778 (INF P0775-13) (Solenoid (SL2) valve circuit)
P0798 (INF P0795-13) (Solenoid (SL3) valve circuit)
P2810 (INF P2807-13) (Solenoid (SL4) valve circuit)
P099E (INF P076A-11), P099F (INF P076A-15) (Solenoid (SC1) valve circuit)
P08D2 (INF P08CC-11), P08D3 (INF P08CC-15) (Solenoid (SC2) valve circuit)
P0C2B (INF P0C2B-31), P0C29 (INF P0C29-96) (Oil pump control circuit)
P1CAD (INF P1CAD-49), P1CB0 (INF P1CB0-38), P0C50 (INF P0C50-13), P0C52 (INF P0C50-16), P0C53 (INF P0C50-17), P0C5A (INF P0C5A-13), P0C5C (INF P0C5A-16), P0C5D (INF P0C5A-17), P0A41 (INF P0A3F-21), P0A42 (INF P0A3F-22), P0A3F (INF P0A3F-16), P1C2B (INF P1C2B-1C), P06B0 (INF P06B0-1C), P06D6 (INF P06D6-1C) (Motor speed control system)
U0100 (INF U0100-87), P3123 (INF P3123-87) (CAN communication system)
Power switch On (READY)
ATF temperature -10°C (14°F) or higher
Solenoid (SLT) valve Not ON malfunction
Either condition is met 1 or 2
1. Both conditions are met (a) and (b)
(a) Driving mode EV
(b) Target speed of oil fluid pump motor 750 rpm or more
2. Both conditions are met (a) and (b)
(a) Driving mode not EV
(b) Engine speed 800 rpm or more
One of the following conditions are met 1, 2, 3, 4 or 5
1. All of the following conditions are met (a), (b), (c), (d), (e), (f) and (g)
(a) Hybrid vehicle control ECU assembly selected gear 1st
(b) Hybrid vehicle control ECU assembly indicated pressure value of SL1 1200 kPa (12.2 kgf/cm2 , 174 psi) or higher
(c) Hybrid vehicle control ECU assembly indicated pressure value of SL4 1200 kPa (12.2 kgf/cm2 , 174 psi) or higher
(d) Duration time from shift position not "R", "P" or "N" 0.4 sec. or more
(e) Time after pressure control at shifting end 0.2 sec. or more
(f) MG2 (motor) speed 0 rpm or more
(g) Driving mode EV
2. All of the following conditions are met (a), (b), (c), (d), (e), (f) and (g)
(a) Hybrid vehicle control ECU assembly selected gear 1st
(b) Hybrid vehicle control ECU assembly indicated pressure value of SL1 1200 kPa (12.2 kgf/cm2 , 174 psi) or higher
(c) Hybrid vehicle control ECU assembly indicated pressure value of SL4 1200 kPa (12.2 kgf/cm2 , 174 psi) or higher
(d) Duration time from shift position "R" 0.4 sec. or more
(e) Time after pressure control at shifting end 0.2 sec. or more
(f) MG2 (motor) speed less than 0 rpm
(g) Driving mode EV
3. All of the following conditions are met (a), (b), (c), (d), (e) and (f)
(a) Hybrid vehicle control ECU assembly selected gear 2nd
(b) Hybrid vehicle control ECU assembly indicated pressure value of SL1 1200 kPa (12.2 kgf/cm2 , 174 psi) or higher
(c) Hybrid vehicle control ECU assembly indicated pressure value of SL3 1200 kPa (12.2 kgf/cm2 , 174 psi) or higher
(d) Duration time from shift position not "R", "P" or "N" 0.4 sec. or more
(e) Time after pressure control at shifting end 0.2 sec. or more
(f) Driving mode EV
4. All of the following conditions are met (a), (b), (c), (d), (e) and (f)
(a) Hybrid vehicle control ECU assembly selected gear 3rd
(b) Hybrid vehicle control ECU assembly indicated pressure value of SL1 1200 kPa (12.2 kgf/cm2 , 174 psi) or higher
(c) Hybrid vehicle control ECU assembly indicated pressure value of SL2 1200 kPa (12.2 kgf/cm2 , 174 psi) or higher
(d) Duration time from shift position not "R", "P" or "N" 0.4 sec. or more
(e) Time after pressure control at shifting end 0.2 sec. or more
(f) Driving mode EV
5. All of the following conditions are met (a), (b), (c), (d), (e) and (f)
(a) Hybrid vehicle control ECU assembly selected gear 4th
(b) Hybrid vehicle control ECU assembly indicated pressure value of SL2 1200 kPa (12.2 kgf/cm2 , 174 psi) or higher
(c) Hybrid vehicle control ECU assembly indicated pressure value of SL3 1200 kPa (12.2 kgf/cm2 , 174 psi) or higher
(d) Duration time from shift position not "R", "P" or "N" 0.4 sec. or more
(e) Time after pressure control at shifting end 0.2 sec. or more
(f) Driving mode EV
CONDITION (C)

Driving mode EV