Pioneer 1200 Maintenance Service Manual page 157

TROUBLESHOOTING AND ELECTRICAL SYSTEM: FE400 ENGINE
Figure 11-47 Spark Plug Cap Test
6. Test the secondary coil separately from the spark plug cap.
6.1. Use a multimeter set to 20k Ω (ohms) and place the red (+) probe of the meter into the end of the
spark plug wire and place the black (–) probe on a clean unpainted surface of the engine or frame
(Figure 11-48, Page 11-38). If the resistance is between 6.0k - 11.0k Ω (ohms), the secondary
coil is within acceptable limits. If the resistance is not between 6.0k - 11.0k Ω (ohms), bench test
the ignition coil. See Ignition Coil – Bench Test on page 11-37.
7. If the preceding procedures indicate that the ignition coil resistance readings are within acceptable
ranges, but the coil fails to function properly, proceed to the following bench test procedures.
Ignition Coil – Bench Test
1. Remove the coil from the engine. See Ignition Coil Removal, Section 12, Page 12-23.
2. Use a multimeter set to 200 Ω (ohms) and measure the primary coil resistance.
2.1. Place the black (–) probe of the meter on the terminal on the ignition coil (1), and place the red (+)
probe on the core (2) (Figure 11-49, Page 11-38).
2.2. If the resistance is not between 0.6 - 1.7 Ω (ohms), replace the ignition coil.
3. Use a multimeter set to 20k Ω (ohms) and 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 that normally connects to
the spark plug (3) and place the black (–) probe on the core (2) (Figure 11-50, Page 11-38).
3.2. If the resistance is between 12.0k - 14.0k Ω (ohms), the secondary coil and spark plug cap are
within acceptable limits; proceed to step 6 on page 11-39. If the resistance is not between 12.0k -
14.0k Ω (ohms), the spark plug cap and secondary coil must be tested independently from each
other.
2003 Pioneer 1200/1200SE Gasoline Vehicle Maintenance and Service Manual
WAVETEK 5XL
V
V OFF
1000 500
200 200
20 200
2 2m
200
20
m
m
200
2000
m
k
200k
Ω 20k 200
A
2k
Ω
! !
V COM 200nA
MAX
1000 ---
FUSED
750V
11
Test Procedures
Page 11-37