Dtc P0340: Cmp Sensor Circuit - Suzuki Grand Vitara 2011 Manual

1A-315 Engine General Information and Diagnosis: For Diesel Engine Model
Troubleshooting
Check the CKP sensor connections.
Repair if necessary.
Check that the sensor is correctly mounted and that the flywheel target is not damaged.
Check that the gap between the CKP sensor and the engine flywheel is 0.5 – 1.8 mm (0.020 – 0.071 in.).
Measure the resistance of the CKP sensor between "C20-1" and "C20-2" terminals of CKP sensor connector.
If the coil resistance is not 720 – 880 Ω at an engine temperature of 20 °C, 68 °F, replace the CKP sensor.
Check the ECM connections.
Repair if necessary.
Check the following connections for continuity and the absence of interference resistance:
• Between "C20-1" wire of CKP sensor connector and "C86-17" terminal of ECM connector
• Between "C20-2" wire of CKP sensor connector and "C86-16" terminal of ECM connector
Repair if necessary.
If the fault is still present, substitute a known-good ECM and recheck.

DTC P0340: CMP Sensor Circuit

NOTE
• Conditions for applying fault finding procedures to stored faults:
The fault is declared present after the engine is started or following a road test.A drop in engine
speed followed by nominal behavior from the vehicle is possible.
• If this fault is present:
– It is impossible to start the vehicle.
– The Injection warning light (gravity 1 warning light) is lit.
• Use service wire for all operations on the ECM connectors.
Wiring Diagram
For wiring circuit and connector number, refer to "A-5 Engine and A/C Control System Circuit Diagram (DSL) in
Section 9A".
Detecting Condition
Displaying on SUZUKI scan tool
D1
D2
Troubleshooting
Check the CMP sensor connections.
Check the ECM connections.
Check the CMP sensor mounting and positioning.
Also check its general condition, (damaged housing, heating up, etc.)
Carry out the necessary repairs.
Check the following connections for continuity and make sure there is no interference resistance:
• Between "C08-2" wire of CMP sensor connector and "C86-15" terminal of ECM connector
• Between "C08-1" wire of CMP sensor connector and "C86-18" terminal of ECM connector
With ignition switch ON and the CMP sensor connected:
• Use a voltmeter to measure the voltage across "C08-1" and "C08-3" wires of the CMP sensor connector:
The voltage displayed should be equal to the battery voltage 0.08 V)
– If the voltage is outside permitted tolerance values, take the measurement again on the connector, with the
CMP sensor disconnected.
– If the voltage is still outside permitted tolerance values with the sensor disconnected.
• Check the following connection for continuity and the absence of interference resistance:
– Between "C08-3" wire of the CMP sensor connector and "E33-6" wire of main relay mounting connector
If the measured voltage is correct with the sensor disconnected.
Measure the CMP sensor resistance between "C08-2" and "C08-3" terminals.
Replace the sensor if the resistance is not 9750 – 10750 Ω at 20 °C, 68 °F.
If the fault is still present, substitute a known-good ECM and recheck.
Detecting condition
No signal
Inconsistency of signal
S6JB0A1124110