NOTE: Camshaft/Crankshaft Position (CMP/CKP) sensor may also be known as pick-up coil or Hall Effect sensor.

Disconnect connector at distributor. Using ohmmeter, measure resistance between terminals. See Fig 1 . See CMP/CKP SENSOR RESISTANCE table. Replace coil if resistance is not within specification. If resistance is within specification, go to next step.
If ignition coil and pick-up coil test okay, use feeler gauge to check air gap. See PICK-UP COIL AIR GAP table. If gap is not correct, loosen signal generator mount screws and move generator to adjust air gap. Recheck for spark. If spark is still not available, go to the TESTS W/CODES article to retrieve stored codes.

Fig 1: Testing Pick-Up Coil Resistance

Courtesy of SUZUKI OF AMERICA CORP.

CMP/CKP SENSOR RESISTANCE - Ohms @ 68°F (20°C)

Application

Ohms

Swift ⁽¹⁾

205-255

⁽¹⁾	Also referred to as Camshaft Position (CMP) sensor.

PICK-UP COIL AIR GAP

Application

In. (mm)

Swift ⁽¹⁾

.008 (.20)

⁽¹⁾	Also referred to as Camshaft Position (CMP) sensor air gap.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Camshaft/Crankshaft Position Sensor