DTC P0748: Pressure Control Solenoid "A" Electrical (Shift Solenoid Valve SL1) [08/2019 - ]: Procedure
WARNING: This page is about a different variant/trim than selected.
- INSPECT TRANSMISSION WIRE (SHIFT SOLENOID VALVE SL1)
- Disconnect the B32 transmission wire connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition 12 (SL1+) - 4 (SL1-) 20°C (68°F) 5.0 to 5.6 Ω 12 (SL1+) - Body ground Always 10 kΩ or higher 4 (SL1-) - Body ground Always 10 kΩ or higher TEXT IN ILLUSTRATION*a Component without harness connected
(Transmission Wire)
Result:
NG
See step 3
Result:
OK
See step 2
- Disconnect the B32 transmission wire connector.
- CHECK HARNESS AND CONNECTOR (TRANSMISSION WIRE - ECM)
- Disconnect the B38 ECM connector.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition B38-33 (SL1+) - B38-34 (SL1-) 20°C (68°F) 5.0 to 5.6 Ω B38-33 (SL1+) - Body ground Always 10 kΩ or higher B38-34 (SL1-) - Body ground Always 10 kΩ or higher TEXT IN ILLUSTRATION*a Rear view of wire harness connector
(to ECM)
Result:
OK
REPLACE ECM. Refer to REMOVAL [08/2015 - ]
Result:
NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
- Disconnect the B38 ECM connector.
- INSPECT SHIFT SOLENOID VALVE SL1
- Remove shift solenoid valve SL1.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition 1 - 2 20°C (68°F) 5.0 to 5.6 Ω - Apply 12 V battery voltage to the shift solenoid valve and check that the valve moves and makes an operating noise.
OK
Measurement Condition Specified Condition - Battery positive (+) with a 21 W bulb → Terminal 1
- Battery negative (-) → Terminal 2
Valve moves and makes operating noise TEXT IN ILLUSTRATION*a Component without harness connected
(Shift Solenoid Valve SL1)
Result:
OK
REPAIR OR REPLACE TRANSMISSION WIRE. Refer to REMOVAL [08/2015 - ]
Result:
NG
REPLACE SHIFT SOLENOID VALVE SL1. Refer to PROCEDURE - Step 5
- Remove shift solenoid valve SL1.