P0958 code meaning
Auto Shift Manual Mode Circuit High
Powertrain system Generic code P09xx codes Check engine light
What P0958 means
The manual mode signal from the selector lever reads above its expected range. Possible causes are a short to supply voltage or, with an internally pulled-up input, an open circuit or missing switch ground that keeps the line high. A Nissan patent explains how two separately wired contacts let the control unit recognise a break in the manual mode switch, and a Hyundai patent shows the lever microswitch that reports the change from D to M. No manufacturer documents this exact code publicly; Hyundai's mode fault is only documented as P0955. CARB requires circuit checks on such inputs. P0957 is the low side, P0959 the intermittent variant. Usually the gearbox stays in automatic mode.
P0958 at a glance
- Check engine lightYes, usually on
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P0958
- Manual gate has no effect, gearbox stays in automatic mode
- Warning lamp depending on manufacturer
- No manual gear shown on the display
Common causes of P0958
- Most likelyBroken mode signal wire or disconnected shifter plug
- PossibleMissing ground at the mode switch
- PossibleMode signal shorted to a voltage-carrying wire
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Auto shift manual switchWiring harnessTCM
What each part of P0958 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 9 | Area: transmission. |
| 58 | The exact fault in that area. |
What to do next
- Note P0958 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0958
What does P0958 mean?
P0958 means "Auto Shift Manual Mode Circuit High". The manual mode signal from the selector lever reads above its expected range. It is a generic code, so it means the same on every make.
Is it safe to drive with P0958?
Usually yes, for a short time, if the check engine light is steady and the car drives normally. If the light flashes or the car runs badly, stop and have it checked.
Will P0958 fail an emissions test?
P0958 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is P0958 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P0958 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.