Inspection Of Ignition Coil; Inspect Primary Coil Resistance; Inspect Secondary Coil Resistance - Toyota 7M-GE Repair Manual

16-10
IGNITION SYSTEM
- On-Vehicle Inspection ('IM-GE)
I MA
MS
n
MS
39
i4
-3
INSPECTION OF IGNITION COIL
1. DlSCOtiNECT HIGH-TENSION CORD
(See page IO-61
'2. INSPECT PRIMARY COIL RESISTANCE
Using an ohmmeter, measure the resistance between the
positive (+I and negative (-1 terminals.
Primary coil resistance (cold):
.,
MA 0.24 - 0.30 (n
MS 0.41 - 0.50 rzZ
If the resistance is not as specified, replace the ignition
coil.
3.
INSPECT SECONDARY COIL RESISTANCE
Using an ohmmeter, measure the resistance between the
positive (+I terminal and high-tension terminal.
Secondary coil resistance (cold):
MA 9.2- 12.4kfi
MS 10.2 - 13.8 ka
If the resistance is not as specified, replace the ignition
coil.
4. RECONNECT HIGH-TENSION CORD
(See page IG-61
INSPECTION OF IGNITER
(See procedure IG-5)