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.
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HOMESERVICE MANUALSMAZDA2023CX-5 SREPAIR AND DIAGNOSISBODY & FRAMEDOOR LOCKSON-BOARD DIAGNOSTIC - POWER LIFTGATE (PLG) CONTROL MODULEDTC B144F-62: DEVIATION IN OPERATION BETWEEN LEFT AND RIGHT POWER LIFTGATE (PLG) DRIVE UNIT [POWER LIFTGATE (PLG) CONTROL MODULE]DIAGNOSTIC PROCEDURE
2023 Mazda CX-5 S
Diagnostic Procedure
2023 Mazda CX-5 SSECTION Diagnostic Procedure
DTC B144F:62 (POWER LIFTGATE CONTROL MODULE) DIAGNOSTIC PROCEDURE
| Step | INSPECTION | ACTION | |
|---|---|---|---|
| 1 | INSPECT POWER LIFTGATE (PLG) DRIVE UNIT (LH) CONNECTOR CONDITIONÂ
|
Yes | Go to the next step. |
| No | Repair or replace the connector, then go to Step 9. | ||
| 2 | INSPECT POWER LIFTGATE (PLG) DRIVE UNIT (RH) CONNECTOR CONDITIONÂ
|
Yes | Go to the next step. |
| No | Repair or replace the connector, then go to Step 9. | ||
| 3 | INSPECT POWER LIFTGATE (PLG) CONTROL MODULE CONNECTOR CONDITIONÂ
|
Yes | Go to the next step. |
| No | Repair or replace the connector, then go to Step 9. | ||
| 4 | INSPECT POWER LIFTGATE (PLG) DRIVE UNIT CIRCUIT FOR SHORT TO GROUNDÂ
|
Yes | Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
|
| No | Go to the next step. | ||
| 5 | INSPECT POWER LIFTGATE (PLG) DRIVE UNIT CIRCUIT FOR SHORT TO POWER SUPPLYÂ
|
Yes | Go to the next step. |
| No | Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
|
||
| 6 | INSPECT POWER LIFTGATE (PLG) DRIVE UNIT CIRCUIT FOR OPEN CIRCUITÂ
|
Yes | Go to the next step. |
| No | Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals:
|
||
| 7 | INSPECT POWER LIFTGATE (PLG) DRIVE UNIT (LH)Â
|
Yes | Go to the next step. |
| No | Replace the power liftgate (PLG) drive unit (LH), then go to Step 9. (See POWER LIFTGATE (PLG) DRIVE UNIT REMOVAL/INSTALLATION .) |
||
| 8 | INSPECT POWER LIFTGATE (PLG) DRIVE UNIT (RH)Â
|
Yes | Go to the next step. |
| No | Replace the power liftgate (PLG) drive unit (RH), then go to the next step. (See POWER LIFTGATE (PLG) DRIVE UNIT REMOVAL/INSTALLATION .) |
||
| 9 | VERIFY THAT REPAIRS HAVE BEEN COMPLETEDÂ
|
Yes | Repeat the inspection from Step 1.
|
| No | Go to the next step. | ||
| 10 | VERIFY IF OTHER DTCs DISPLAYEDÂ
|
Yes | Repair or replace the malfunctioning part according to the applicable DTC troubleshooting. (See DTC TABLE [POWER LIFTGATE (PLG) CONTROL MODULE]Â .) |
| No | DTC troubleshooting completed. | ||
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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.