With the engine running and the scanner showing live PM sensor voltage, lightly tap the sensor body with a screwdriver handle. If the voltage jumps erratically, the sensor has an intermittent internal break.
Definition: Renault DTC F00316 translates to “Particulate Sensor: Supply Voltage Outside Plausibility Range” or “Particulate Sensor Circuit – Voltage Too High/Low.”
In plain English, the engine control module has performed a self-diagnostic check on the electrical circuit of the exhaust particulate matter sensor and found that the voltage signal is incorrect. This is an electrical fault, not necessarily a mechanical one.
The particulate sensor is a relatively recent addition to diesel exhaust after-treatment systems. Before its introduction, vehicles relied solely on differential pressure sensors to estimate soot load in the Diesel Particulate Filter (DPF). The PM sensor measures the actual number of soot particles exiting the DPF. It provides real-time feedback to the ECU to determine if the DPF is functioning correctly and if a regeneration is needed. renault dtc f00316
The sensor itself has an internal heating element and a sensing element. The heating element (used to burn off soot for regeneration of the sensor) can fail, causing a voltage spike or drop.
The LIN bus is a single wire (usually white or yellow with a tracer) running from the ECU to the alternator. On many Renaults, this wire passes near the front subframe or oil filter housing. Oil leaks, road salt, or engine vibration can chafe or corrode the wire. Even one broken strand causes intermittent signal loss.
Renault engines (particularly the 1.2 TCe, 1.6 TCe, and older K-series engines) are prone to specific failures that trigger this code. With the engine running and the scanner showing
1. Ignition System Failures (Most Common)
2. Fuel Delivery Issues
3. Mechanical/Engine Issues (Critical for 1.2/1.6 TCe Engines) Check/replace in-tank lift pump (if pressure <1
4. Sensors
| Engine | Specifics | |--------|------------| | K9K 1.5 dCi | Very sensitive to filter blockage. FQR failure common after 120k km. | | R9M 1.6 dCi | Also common; check low pressure pump relay and fuse. | | M9R 2.0 dCi | Rare; often misdiagnosed – check EGR first (F00316 can appear secondary). |