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.
2008 Infiniti M45 BaseFACTORY OEM SERVICE PROCEDURE
Automatic Transmission DTCS
AUTOMATIC TRANSMISSION DIAGNOSTIC TROUBLE CODES (DTC) IDENTIFICATION
| Description | DTC |
|---|---|
| A/T 1ST E/BRAKING | P1731 |
| A/T 1ST GR FNCTN | P0731 |
| A/T 2ND GR FNCTN | P0732 |
| A/T 3RD GR FNCTN | P0733 |
| A/T 4TH GR FNCTN | P0734 |
| A/T 5TH GR FNCTN | P0735 |
| A/T INTERLOCK | P1730 |
| A/T TCC S/V FNCTN | P0744 |
| ATF TEMP SEN/CIRC | P1710 |
| CAN COMM CIRCUIT | U1000 |
| D/C SOLENOID/CIRC | P1762 |
| ENGINE SPEED SIG | P0725 |
| FR/B SOLENOID/CIRC | P1757 |
| HLR/C SOL/CIRC | P1767 |
| I/C SOLENOID/CIRC | P1752 |
| L/PRESS SOL/CIRC | P0745 |
| LC/B SOLENOID/CIRC | P1772 |
| LC/B SOLENOID FNCT | P1774 |
| MANU MODE SW/CIRC | P1815 |
| PNP SW/CIRC | P0705 |
| STARTER RELAY/CIRC | P0615 |
| TCC SOLENOID/CIRC | P0740 |
| TCM | P0700 |
| TP SEN/CIRC A/T | P1705 |
| TURBINE REV S/CIRC | P0717 |
| VEH SPD SE/CIR.MTR | P1721 |
| VEH SPD SEN/CIR AT | P0720 |
Factory Service Tools
Use the Manual With the Right Hardware
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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.