Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSACURA2018MDX BASEREPAIR AND DIAGNOSISDRIVELINES & AXLESDIFFERENTIALS & DRIVE AXLESDIFFERENTIAL / SH-AWD - SERVICE, TESTING AND TROUBLESHOOTING (EXCEPT HYBRID)CONNECTOR VIEWSH-AWD ® CONTROL UNIT CONNECTOR FOR INPUTS AND OUTPUTS (2017 2018 2019 2020)
2018 Acura MDX Base
SH-AWD ® Control Unit Connector for Inputs and Outputs (2017 2018 2019 2020)
2018 Acura MDX BaseSECTION SH-AWD ® Control Unit Connector for Inputs and Outputs (2017 2018 2019 2020)
SH-AWD Control Unit 24P Connector (female terminals)
| Terminal number | Signal | Description | Measuring Conditions/Terminal Voltage |
|---|---|---|---|
| 1 | +B 4WD | Power source for SH-AWD control unit | Battery voltage at all times |
| 2 | X62 PWR | Power source for SH-AWD system | Vehicle in ON mode: battery voltage |
| 3 | Not used | - - - | - - - |
| 4 | GND | Ground for SH-AWD control unit | Vehicle in ON mode: about 0 V |
| 5 | SG2 | Ground for left rear differential fluid pressure sensor | Vehicle in ON mode: about 0 V |
| 6 | LSH | Drives left rear differential solenoid valve (positive) | With left rear differential solenoid valve off: about 0 V With left rear differential solenoid valve on: battery voltage |
| 7 | LSL | Drives left rear differential solenoid valve (negative) | Vehicle in ON mode: about 0 V |
| 8 | SVCC2 | Power supply for left rear differential fluid pressure sensor | Vehicle in ON mode: about 5.0 V |
| 9 | LPS | Detects left rear differential fluid pressure sensor signal | Vehicle in ON mode: about 0 V to 5.0 V (Depending on rear differential fluid pressure) |
| 10 | X62 PWR | Power source for SH-AWD relay | Vehicle in ON mode: about 0 V Vehicle in OFF (LOCK) mode: battery voltage |
| 11 | SG3 | Ground for rear differential fluid temperature sensor | Vehicle in ON mode: about 0 V |
| 12 | IG1 OPTION | Power source for SH-AWD control unit | Vehicle in ON mode: battery voltage |
| 13 | 4WD CANH | Sends and receives communication signal | Vehicle in ON mode: pulses |
| 14 | F-CAN A_H | Sends and receives communication signal | Vehicle in ON mode: pulses |
| 15 | RSH | Drives right rear differential solenoid valve (positive) | With right rear differential solenoid valve off: about 0 V With right rear differential solenoid valve on: battery voltage |
| 16 | RSL | Drives right rear differential solenoid valve (negative) | Vehicle in ON mode: about 0 V |
| 17 | SG1 | Ground for right rear differential fluid pressure sensor | Vehicle in ON mode: about 0 V |
| 18 | TOH | Detects rear differential fluid temperature sensor signal | Vehicle in ON mode: about 0 V to 5.0 V (Depending on rear differential fluid temperature) |
| 19 | SVCC1 | Power supply for right rear differential fluid pressure sensor | Vehicle in ON mode: about 5.0 V |
| 20 | TOH2 | Detects rear differential fluid temperature sensor 2 signal | Vehicle in ON mode: about 0 V to 5.0 V (Depending on rear differential fluid temperature) |
| 21 | RPS | Detects right rear differential fluid pressure sensor signal | Vehicle in ON mode: about 0 V to 5.0 V (Depending on rear differential fluid pressure) |
| 22 | SG4 | Ground for rear differential fluid temperature sensor 2 | Vehicle in ON mode: about 0 V |
| 23 | 4WD CANL | Sends and receives communication signal | Vehicle in ON mode: pulses |
| 24 | F-CAN A_L | Sends and receives communication signal | Vehicle in ON mode: pulses |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.