19
Test Procedures
TROUBLESHOOTING AND ELECTRICAL
SYSTEM (GASOLINE VEHICLE)
V
V
A
x10
x1
0
0
30
15
0
30
300
300
30
600
x100
x1k
600
OFF
3
2
1
1. Ignition Coil Terminal 2. Core 3. x1K Ohm Setting
V
V
A
x10
x1
0
0
30
15
0
30
300
300
30
600
x100
x1k
600
OFF
1
2
3
1. x1K Ohm Setting 2. Core 3. Spark Plug Cap
2649
Figure 19-28
Primary Coil Resistance – Bench Test
2650
Figure 19-29 Secondary Coil and Cap Resistance – Bench
Test
2.2. If the resistance is not between 5.5k to 12.7k ohms, replace the ignition coil.
3.
Using an analog multimeter set to x1k ohms, measure the resistance of the secondary coil and spark plug
cap together.
3.1. Place the red (+) probe of the meter into the end of the spark plug cap (3) that normally connects to the
spark plug and place the black (–) probe on the core (2)
.
3.2. If the resistance is between 8.6k to 20.2k ohms, the secondary coil and spark plug cap are within acceptable
limits; proceed to step 5. If the resistance is not between 8.6k to 20.2k ohms, the spark plug cap and
secondary coil must be tested independently from each other.
4.
If not previously tested, test the spark plug cap separately from the secondary coil.
4.1. Remove the rubber gasket (1) on the plug cap (2) by rolling back the gasket onto the spark plug wire (3)
.
4.2. Remove the cap from the wire by turning the cap counterclockwise three or four revolutions while gently
pulling it off the wire
.
4.3. Using a multimeter set to 20k ohms, place the red (+) probe of the multimeter into the end of the spark plug
cap that normally connects to the spark plug and place the black (–) probe into the end of the cap with the
internal screw
. If the resistance is not between 4.5k to 6.0k ohms, the cap has
failed and must be replaced. Proceed to the next step with the spark plug cap still removed.
5.
If the preceding tests indicate that the ignition coil resistance readings are within acceptable ranges, but the coil
fails to function properly, replace the ignition coil and cap.
TEST PROCEDURE 15 – Key Switch (Engine Kill Circuit)
See General Warnings on page 1-2.
1.
Disconnect battery and spark plug wire(s).
See Disconnecting the Battery – Gasoline Vehicles on page 1-3.
2.
Remove the instrument panel assembly.
See Key Switch Removal on page 20-14.
Page 19-28
2014 Precedent
®
Golf Car Maintenance and Service Manual
Summary of Contents for Precedent 2014
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