Note
Resistance Inspection
1. Disconnect the CKP sensor connector.
2. Measure the resistance between CKP sensor terminals A and B using an ohmmeter.
Specification
400-550 ohms
Circuit Open/Short Inspection
1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION.)

2. Inspect the following wiring harnesses for open or short. (Continuity check)
Open circuit
- CKP sensor terminal A (harness-side) and PCM terminal 2D (harness-side)
- CKP sensor terminal B (harness-side) and PCM terminal 2G (harness-side)
Short circuit
- CKP sensor terminal A (harness-side) and power supply
- CKP sensor terminal A (harness-side) and body GND
- CKP sensor terminal B (harness-side) and power supply
- CKP sensor terminal B (harness-side) and body GND
Engine coolant temperature (ect) sensor inspection
Crankshaft position (ckp) sensor removal/installationMazda 6 Service Manual: Engine oil replacement
Warning
Hot engines and engine oil can cause severe burns. Turn off the
engine and wait until it and the engine oil has cooled.
A vehicle that is lifted but not securely supported on safety
stands is dangerous. It can slip or fall, causing death or serious injury.
Never work around or ...
Mazda 6 Service Manual: Coil removal/installation
Note
Do not remove the coil unless you are replacing it.
When only the coil is replaced, the immobilizer system reprogram
procedure is not necessary.
1. Disconnect the negative battery cable.
2. Remove the column cover.
3. Remove in the order indicated in the table.
4. Install in ...