Mazda CX-5 Service & Repair Manual: Crankshaft Position (CKP) Sensor Inspection
Visual Inspection
CAUTION:
-
When foreign material such as an iron chip is on the CKP sensor, it can cause abnormal output from the sensor because of flux turbulence and adversely affect the engine control. Be sure there is no foreign material on the CKP sensor when replacing.
-
Do not assemble the CKP sensor or change the installation position using any method other than the following. Otherwise, it could negatively affect engine controls, such as the ignition timing and fuel injection.
1. Remove the CKP sensor..
2. Verify that there are no metal shavings on the sensor.
-
If there is a malfunction, remove any metal shavings that are adhering.
Voltage Inspection
CAUTION:
-
When foreign material such as an iron chip is on the CKP sensor, it can cause abnormal output from the sensor because of flux turbulence and adversely affect the engine control. Be sure there is no foreign material on the CKP sensor when replacing.
-
Do not assemble the CKP sensor or change the installation position using any method other than the following. Otherwise, it could negatively affect engine controls, such as the ignition timing and fuel injection.
-
If the wiring harnesses or waterproof connectors are damaged, water penetrating the connector will cause a sensor malfunction. To prevent this, be careful not to damage wiring harnesses or waterproof connectors.
1. Idle the engine.
2. Measure the CKP sensor output voltage using the oscilloscope.
-
If not as specified, replace the CKP sensor..
|
Terminal |
Voltage (V) |
Condition |
|
A |
Approx. 5.0 |
Under any condition |
|
B |
Below 1.0 |
Under any condition |
|
C |
Above 4.5 |
High output* |
|
Below 0.8 |
Low output* |
* Output voltage varies with crankshaft rotation.
Crank, Balancer
...
Crankshaft Position (CKP) Sensor Removal/Installation
CAUTION:
When foreign material such as an iron chip is on the CKP sensor, it can cause
abnormal output from the sensor because of flux turbulence and adversely affect
the engine control. ...
Other materials:
Fuel Injector Relay [Skyactiv G 2.0]
Purpose, Function
Supplies power to the PCM for the fuel injector and spill valve control solenoid
valve operation.
Construction
The fuel injector relay is installed in the relay and fuse block.
Operation
When the ignition is switched ON, the battery voltage ...
Quick Release (Fuel System) Connector
Purpose, Function
Serviceability has been improved by the easy disconnection/connection.
Construction
The following types of the quick release connectors are used.
U.S.A. and CANADA
Except U.S.A. and CANADA
Type A
An SST is not used with this type.
...
Oil Control Valve (OCV) Inspection
Coil Resistance Inspection
1. Disconnect the negative battery cable..
2. Remove the plug hole plate..
3. Disconnect the OCV connector.
4. Measure the resistance between terminals A and B using an ohmmeter.
OCV coil resistance
6.9—7.5 ohms [20°C {68°F}]
If not as ...
