If hardware checks out, a dealer update may be necessary.
The vehicle might stall, especially when coming to a stop. p158b renault
Test the actuator for proper operation. If the wiring is sound, the actuator likely needs replacement. Potential Fixes If hardware checks out, a dealer update may be necessary
The Engine Control Module (ECM) sets this code when it detects that the actuator or sensor responsible for managing idle speed or exhaust pressure is operating outside its expected factory specifications. Renault (and Dacia) System: Powertrain / Idle Air Control Code Type: Manufacturer-Specific (P-Code) Common Symptoms of P158B If hardware checks out
Inspect the wiring harness and connectors associated with the idle control actuator. Look for broken, bent, or corroded pins.