The P0958: Auto Shift Manual Mode Circuit High refers to an issue where the auto shift manual mode circuit is receiving higher than expected voltage. This can result in improper manual shifting and affect the vehicle’s transmission performance.
P0958 – Quick Overview
| Code | Information |
|---|---|
| Meaning | P0958: Auto Shift Manual Mode Circuit High |
| Is it serious? | Yes, high voltage can damage components and prevent proper manual shifting. |
| Possible causes | – High voltage in the auto shift manual mode circuit – Faulty auto shift manual mode module – Wiring or connector issues |
| How to diagnose? | – Check the circuit for high voltage – Inspect wiring and connectors – Replace the auto shift manual mode module if necessary |
P0958 Meaning
The P0958: Auto Shift Manual Mode Circuit High code indicates that the voltage in the auto shift manual mode circuit is above the required level, causing improper functioning of the manual shift mode. This may be due to faulty wiring, connectors, or a malfunctioning control module.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check for additional fault codes that may provide more information about the high voltage issue. | OBD-II Scanner |
| Test for High Voltage | Use a multimeter to check for high voltage in the auto shift manual mode circuit. Compare the readings to the manufacturer’s specifications. | Multimeter |
| Inspect Wiring and Connectors | Inspect the wiring and connectors for damage, corrosion, or loose connections that could be causing high voltage. | Flashlight, Multimeter |
| Check the Control Module | Test the auto shift manual mode control module for proper functionality. Replace it if it is faulty or receiving excessive voltage. | Diagnostic Tool, Replacement Module |
| Clear the Code and Test Drive | After repairs, clear the code using an OBD-II scanner and perform a test drive to ensure the issue is resolved. | OBD-II Scanner, Vehicle Owner’s Manual |
| Recheck for Codes | Re-scan the system to ensure the P0958 code does not return after the test drive. | OBD-II Scanner |
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I test OBD-II scanners and make DIY Engine diagnostics guides to help you solve your car problems without having to depend on the mechanic. A lot of them will try to scam you or are just no help at all. About Juraj Lukacko