Clean Coil And Check Following; Inspect Primary Coil Resistance; Inspect Secondary Coil Resistance - Toyota 22R-E Service Manual

IG–22
IGNITION SYSTEM – (3VZ– E)
IGNITION COIL INSPECTION
NOTICE: 'Cold' and "Hot" in the following sentences
express the temperature of the coils themselves. "Cold' is
from –10SC (14SF) to 50SC (122SF) and "Hot' is from 50S
C 0 22SF) to 100SC (212SF).
1. DISCONNECT IGNITION COIL CONNECTOR
2. DISCONNECT HIGH–TENSION CORD

3. CLEAN COIL AND CHECK FOLLOWING:

(a) Check for cracks or damage.
(b) Check the terminals far carbon tracks.
(c) Check the high–tension cord hole for carbon deposits
and corrosion.

4. INSPECT PRIMARY COIL RESISTANCE

Using an ohmmeter, measure the resistance between
the positive (+) and negative (–) terminals.
Primary coil resistance (Cold):
0.36–0.55W
Primary coil resistance (Hot):
0.45–0.660
If the resistance is not as specified, replace the igni–
tion coil.

5. INSPECT SECONDARY COIL RESISTANCE

Using an ohmmeter, measure the resistance between
the positive (+) terminal and high–tension terminal.
Secondary coil resistance (Cold):
9.0 – 15.4 kW
Secondary coil resistance (Hot):
11.4 – 18.1 kW
If the resistance is not as specified, replace the igni–
tion coil.
6. RECONNECT HIGH–TENSION CORD
7. RECONNECT IGNITION COIL CONNECTOR