Diagnostic procedure
WARNING: This page is about a different car, the 2005 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0101 [L3] DIAGNOSTIC PROCEDURE
| STEP |
INSPECTION |
ACTION |
| 1 |
VERIFY FREEZE FRAME DATA HAS BEEN RECORDED
- Has FREEZE FRAME DATA been recorded?
|
Yes |
Go to the next step. |
| No |
Record FREEZE FRAME DATA on repair order, then go to the next step. |
| 2 |
VERIFY RELATED REPAIR INFORMATION AVAILABILITY
- Check for related Service Bulletins and/or online repair information availability.
- Is any related repair information available?
|
Yes |
Perform repair or diagnosis according to the available repair information.
- If the vehicle is not repaired, go to the next step.
|
| No |
Go to the next step. |
| 3 |
VERIFY CURRENT INPUT SIGNAL STATUS IS CONCERN INTERMITTENT OR CONSTANT
- Connect WDS or equivalent to DLC-2.
- Start the engine.
- Access ECT, MAF, TP and RPM PIDs using the WDS or equivalent.
- Warm-up engine until ECT PID is above 70°C {158°F}
.
- Idle engine for 5 s or more
.
CAUTION:
- While driving, always operate the vehicle in a safe and lawful manner.
- Drive the vehicle under the following two conditions:
Condition 1
- TP PID: 50-87.5%
- RPM PID: above 1,000 rpm
- 4th gear (MT), D range (AT)
Condition 2
- TP PID: above 80%
- RPM PID: below 2,000 rpm
- gear in
- Is PENDING CODE for this DTC present?
|
Yes |
Go to the next step. |
| No |
Intermittent concern exists. Go to INTERMITTENT CONCERNS TROUBLESHOOTING procedure. (See INTERMITTENT CONCERN TROUBLESHOOTING
) |
| 4 |
CHECK MAF SENSOR TERMINALS FOR ELECTRICAL CORROSION
- Turn the ignition switch off.
- Disconnect MAF sensor connector.
- Check for poor connection (damaged, pulled-out terminals, corrosion, etc.).
- Is any problem corrosion found?
|
Yes |
Repair or replace suspected terminal or MAF sensor, then go to Step 6. |
| No |
Go to the next step. |
| 5 |
INSPECT PCM CONNECTOR FOR POOR CONNECTION
- Disconnect PCM connector.
- Check for poor connection (damaged, pulled-out pins, corrosion, etc.).
- Is there any malfunction?
|
Yes |
Repair terminal, then go to the next step. |
| No |
Go to the next step. |
| 6 |
VERIFY TROUBLESHOOTING OF DTC P0101 COMPLETED
- Make sure to connect all disconnected connectors.
- Turn ignition switch to ON (Engine off).
- Clear the DTC from the PCM memory using the WDS or equivalent.
- Start the engine.
- Warm-up engine until ECT PID is above 70°C {158°F}
.
- Idle engine for 5 s or more.
CAUTION:
- While performing the Drive Mode, always operate the vehicle in a safe and lawful manner.
- Drive the vehicle under the following two conditions:
Condition 1
- TP PID: 50-87.5%
- RPM PID: above 1,000 rpm
- 4th gear (MT), D range (AT)
Condition 2
- TP PID: above 80%
- RPM PID: below 2,000 rpm
- gear in
- Is PENDING CODE for this DTC present?
|
Yes |
Replace PCM, then go to the next step. |
| No |
Go to the next step. |
| 7 |
VERIFY AFTER REPAIR PROCEDURE
|
Yes |
Go to the applicable DTC inspection.
(See
DTC TABLE ) |
| No |
Troubleshooting completed. |