Subaru Impreza 2003 Service Manual page 389

C: INSPECTION
Using the accurate tester, inspect the following
items, and replace if defective.
1) Primary coil resistance
2) Secondary coil resistance
CAUTION:
If the resistance is extremely low, this indicates
the presence of a short-circuit.
Specified resistance:(1.6 L model)
[Primary side]
Between terminal No. 1 and No. 4
0.7 Ω± Ω± Ω± 10% Ω±
Between terminal No. 1 and No. 2
0.7 Ω± Ω± Ω± 10% Ω±
4
[Secondary side]
Between (A) and (B)
13.0 k Ω± Ω± 20% Ω± Ω±
Between (C) and (D)
13.0 k Ω± Ω± 20%
Ω± Ω±
(C)
(A)
IGNITION COIL & IGNITOR ASSY
3 2 1
IG-00029
(D)
(B)
IG-00030
Specified resistance:(2.0 L and 2.5 L model)
[Primary side]
Between terminal No. 1 and No. 2
0.73 Ω± Ω± 10%
Ω± Ω±
Between terminal No. 2 and No. 4
0.73 Ω± Ω± 10% Ω± Ω±
[Secondary side]
Between (A) and (B)
12.8 k Ω± Ω± 15% Ω± Ω±
Between (C) and (D)
12.8 k Ω± Ω± 15% Ω± Ω±
3) Insulation between primary terminal and case:
100 MΩ or more.
IG(H4SO)-9
4 3 2 1
(C)
(A)
(D)
(B)
IGNITION
IG-00029
IG-00045