DTC P281B-13: Pressure Control Solenoid "H" Control Circuit Open [09/2023 - ]: Procedure
- CHECK HARNESS AND CONNECTOR (SOLENOID (SL5) VALVE - TCM)
Pre-procedure1
- Disconnect the TCM connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition Result C25-3 (SL5+) - C25-20 (SLG2) 20°C (68°F) 5.0 to 5.6 Ω Ω C25-3 (SL5+) or C25-20 (SLG2) - Body ground and terminals other than C25-40 (SL2+) Always 10 kΩ or higher kΩ C25-20 (SLG2) - Body ground Always Below 1 Ω Ω Result
Proceed to OK NG
Post-procedure1
- None.
Result:
NG
See step 4
Result:
OK
See step 2
- CHECK TCM (HSDN TERMINAL VOLTAGE)
Pre-procedure1
- Disconnect the TCM connector.
- Turn the ignition switch to ON.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition Result C25-52 (HSDN) - Body ground Ignition switch ON 11 to 14 V V Result
Proceed to OK NG
Post-procedure1
- None.
Result:
NG
REPLACE TCM. Refer to REMOVAL [09/2023 - ]
Result:
OK
See step 3
- CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - TCM)
Pre-procedure1
- Disconnect the hybrid vehicle control ECU assembly connector.
- Disconnect the TCM connector.
- Turn the ignition switch to ON.
- Measure the voltage according to the value(s) in the table below.
Standard Voltage
Tester Connection Condition Specified Condition Result B21-9 (SOLC) or C25-52 (HSDN) - Body ground Ignition switch ON Below 1 V V
Pre-procedure2
- Turn the ignition switch off.
- Disconnect the cable from the negative (-) auxiliary battery terminal.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition Result C25-52 (HSDN) - C25-1 (+B) Ignition switch off 10 kΩ or higher kΩ B21-9 (SOLC) - B21-10 (+B2) Ignition switch off 10 kΩ or higher kΩ B21-9 (SOLC) - D44-8 (+B1) Ignition switch off 10 kΩ or higher kΩ B21-9 (SOLC) - D44-10 (MREL) Ignition switch off 10 kΩ or higher kΩ Result
Proceed to OK NG
Post-procedure1
- None.
Result:
OK
REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY. Refer to REMOVAL [09/2023 - 12/2023] , or refer to REMOVAL [12/2023 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - TCM)
Pre-procedure1
- Disconnect the transmission wire connector.
- Disconnect the TCM connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition Result C65-30 (SL5+) - C25-3 (SL5+) Always Below 1 Ω Ω C65-9 (SLG2) - C25-20 (SLG2) Always Below 1 Ω Ω C65-30 (SL5+) or C25-3 (SL5+) - Body ground and other terminals Always 10 kΩ or higher kΩ C65-9 (SLG2) or C25-20 (SLG2) - Body ground and other terminals Always 10 kΩ or higher kΩ Result
Proceed to OK NG
Post-procedure1
- None.
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
Result:
OK
See step 5
- INSPECT SOLENOID (SL5) VALVE
Refer to INSPECTION [09/2023 - ]
Result
Proceed to OK NG Result:
OK
REPAIR OR REPLACE TRANSMISSION WIRE. Refer to REMOVAL [09/2023 - ]
Result:
NG
REPLACE TRANSMISSION VALVE BODY ASSEMBLY. Refer to REMOVAL [09/2023 - ]