DTC P1501:00 [MZI-3.7]

id0102d2317800

DTC P1501:00 | Vehicle speed sensor (VSS) out of self-test range
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DETECTION CONDITION | • Indicates that the vehicle speed input signal is out of the self-test range. If the PCM detects a vehicle speed input signal any time during the self-test, DTC P1501:00 is set and the test aborts.
POSSIBLE CAUSE | • Noise on the vehicle speed input signal from radio frequency interference/electro magnetic interference • External sources, such as ignition wires, the charging circuit, or aftermarket equipment

Diagnostic procedure

STEP | INSPECTION | ACTION
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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 the repair order, then go to the next step.
2 | VERIFY RELATED SERVICE INFORMATION AVAILABILITY • Verify related Service Information availability. • Is any related Service Information available? | Yes | Perform repair or diagnosis according to the available Service Information. • If the vehicle is not repaired, go to the next step.
No | Go to the next step.
3 | VERIFY STORED DTC IN DSC/RSC HU/CM • Turn the ignition switch to the ON position (Engine off). • Verify stored DTCs in DSC/RSC HU/CM. • Are DTCs stored? | Yes | Go to the appropriate DTC inspection. (See ON-BOARD DIAGNOSIS [DSC/RSC].)
No | Go to the next step.
4 | VERIFY TROUBLESHOOTING OF DTC P1501:00 HAS BEEN COMPLETED • Verify that all disconnected connectors reconnected. • Clear the DTC from the PCM memory using the M-MDS. • Perform the KOEO or KOER self-test. (See KOEO/KOER SELF TEST [MZI-3.7].) • Is the PENDING CODE for the DTC present? | Yes | Repeat the inspection from Step 1. • If the malfunction recurs, replace the PCM. (See PCM REMOVAL/INSTALLATION [MZI-3.7].) Go to the next step.
No | Go to the next step.
5 | VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [MZI-3.7].) • Are any DTCs present? | Yes | Go to the applicable DTC inspection. (See DTC TABLE [MZI-3.7].)
No | Troubleshooting completed.