AFTER REPAIRDeal with any faults displayed by the diagnostic tool.
Clear the computer fault memory.
Carry out a road test followed by another check with the diagnostic tool.
Fault finding – Interpretation of faults17B
Program No.: 2A
Vdiag No.: 04, 05, 06,
14, 16, 18
STOREDENGINE SPEED SENSOR SIGNAL1.DEF: Inconsistent signal.
4.DEF: Incorrect number of teeth.
NOTESConditions for applying the fault finding procedure to a stored fault:
The fault is present after starting the engine and under the following conditions:
– engine running at idling speed
OBD warning light and level 1 fault warning light illuminated.
See the Wiring Diagrams Technical Note for Logan, Sandero, Duster, Thalia 2/
Symbol 2, Clio II F 6, Kangoo VLL.
Check the connection and condition of the connector of the crankshaft position sensor, component code 149
and of the injection computer connector, component code 120.
If the connector or connectors are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the connector, otherwise replace the wiring.
Measure the resistance of the crankshaft position sensor component code 149 between connections 3BL and
3BG on the injection computer connector, component code 120.
If the resistance of the crankshaft position sensor is not between 175 X 295 or 200 X 270 (F4R
engine of Duster) (between 0°C and 40°C), replace the crankshaft position sensor, component code 149 (see
MR 388 (Logan and Sandero), MR 451 (Duster), MR 423 (Thalia 2/Symbol 2), MR 430 (Clio II F 6) or MR 374
(Kangoo VLL), Mechanical, 17B, Petrol injection, Crankshaft position sensor: Removal - Refitting).
Check the insulation and continuity of the following connections:
–3BG between components 149 and 120,
–3BL between components 149 and 120.
If the connection or connections are faulty and there is a repair procedure (see Technical Note 6015A, Electrical
wiring repair, Wiring: Precautions for repair), repair the wiring, otherwise replace it.
Check that the 58 teeth of the flywheel target are not damaged or broken.
Check that the target is securely mounted on the flywheel (see MR 388 (Logan and Sandero), MR 451 (Duster),
MR 423 (Thalia 2/Symbol 2), MR 430 (Clio II F 6) or MR 374 (Kangoo VLL), Mechanical, 10A, Engine and
cylinder block assembly, Flywheel: Removal - Refitting): check the tightening torque and that there is no
angular play or movement in relation to the target shaft.
If the fault is still present, contact the Techline.