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Home >> Lexus >> 2017 >> IS 300 F Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 28 (Automatic Transmission System (Aa81E, For 8AR-FTS) - Diagnostic Codes (2 Of 4)) >> AUTOMATIC TRANSMISSION SYSTEM (for 8AR-FTS) >> DTC P076A-7F: Shift Solenoid "H" Control Actuator Stuck Off [10/2016 - 10/2017] >> Description

DTC P076A-7F: Shift Solenoid "H" Control Actuator Stuck Off [10/2016 - 10/2017]: Description

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Based on signals from the transmission revolution sensors (NT, NC3 and SP2), the actual gear is detected.

If the detected gear is different than the commanded gear, the ECM detects related mechanical problems in the shift solenoid valves, transmission valve body assembly and automatic transmission assembly (clutch, brake, gear, etc.).

HINT: 

ACTUAL GEAR WHEN A MALFUNCTION OCCURS IN SOLENOID (SC1) VALVE (WITHOUT FAIL-SAFE CONTROL):

ECM commanded gear 1st 2nd 3rd 4th 5th 6th 7th 8th
Actual gear during SC1 stuck OFF malfunction 1st
(3rd)*		 2nd 3rd 4th 5th 6th 7th 8th

*: With D1 or M1 range (1st gear) selected

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P076A-7F Shift Solenoid "H" Control Actuator Stuck Off 1. Diagnosis Condition, 2. Malfunction Status, 3. Malfunction Time, 4. Other
  1. Engine coolant temperature is 40°C (104°F) or more, ATF temperature is -10°C (14°F) or more, and the vehicle is driven with D1 or M1 range (1st gear) (no malfunctions are detected in solenoid (SL1, SL2, SL3, SL4, SL5, SC1 and SC2) valves, transmission revolution sensors (NT, NC3, SP2), water temperature sensor, oil temperature sensor, knock control sensor, electronic throttle, or CAN2)
  2. When the ECM commands the transmission to shift to 1st gear, the actual gear changes to 3rd gear.
  3. Malfunction status continues for 0.6 seconds or more
  4. 2-trip detection logic
  • Solenoid (SC1) valve
  • Solenoid (SC2) valve
  • Solenoid (SL1) valve
  • Solenoid (SL2) valve
  • Solenoid (SL3) valve
  • Solenoid (SL4) valve
  • Solenoid (SLT) valve
  • Transmission valve body assembly
  • Torque converter assembly
  • Automatic transmission assembly (clutch, brake, gear, etc.)
 Comes on DTC stored SAE Code:
P076B
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