P058F code meaning
Battery Monitor Module Temperature Too Low
Powertrain system Generic code P05xx codes Check engine light
What P058F means
The battery monitor module (intelligent battery sensor) sits on the negative terminal of the 12 V battery: a shunt measures current, electronics also measure voltage and temperature and calculate state of charge, health and cranking ability, reporting over LIN. Energy management uses the data for alternator control, idle boost and stop-start release, which is why the engine module diagnoses it. GM sets P058A–P058F in its engine modules from 2016 as type B, warning lamp after two trips. P058F means the module reports a temperature below its plausible range: GM sets it below −43 °C in 4 of 5 samples, but only with an outside temperature above −20 °C – so the value is physically implausible, usually an open sensing circuit or faulty sensor. It suspends P058C; the charge voltage then lacks correct temperature compensation.
P058F at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modeNot expected
- Repair difficultyEasy, DIY possible
- Typical labor0.3 to 1 hours
- Clears after repairAfter a drive cycle
Symptoms of P058F
- Check engine light on
- Stop-start not available
- No driveability problems
Common causes of P058F
- Most likelyBattery sensor faulty internally (temperature element open)
- Less likelySensor software or initialisation after power loss
- Less likelySupply or connector problem at the sensor
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Battery monitor moduleBattery terminalLin busEngine control module
What each part of P058F means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 5 | Area: vehicle speed, idle control and auxiliary inputs. |
| 8F | The exact fault in that area. |
What to do next
- Note P058F 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 P058F
What does P058F mean?
P058F means "Battery Monitor Module Temperature Too Low". The battery monitor module (intelligent battery sensor) sits on the negative terminal of the 12 V battery: a shunt measures current, electronics also measure voltage and temperature and calculate state of charge, health and cranking ability, reporting over LIN. It is a generic code, so it means the same on every make.
Is it safe to drive with P058F?
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 P058F fail an emissions test?
Yes, it can. P058F is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P058F to fix?
Difficulty: easy. A typical repair takes 0.3 to 1 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P058F clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.