TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.006

IGE/Ignition System 2JZ-GE — Ignition Coil Inspection, page 7

7 / 18
p.008
Ignition Coil Inspection — MK4 Supra Ignition System 2JZ-GE, page 7
100%
Page text (OCR transcript)
IG–7
IGNITION SYSTEM – (2JZ–GE)

IGNITION COIL INSPECTION

NOTICE: "Cold" and "Hot" in the following sentences express the temperature of the coils themselves. "Cold" is from–10°C (14°F) to 50°C (122°F) and "Hot" is from 50°C (122°F) to 100°C (212°F).

1. DISCONNECT IGNITION COIL CONNECTOR
2. DISCONNECT HIGH–TENSION CORD FROM IGNITION COIL
3. INSPECT PRIMARY COIL RESISTANCE
Using an ohmmeter, measure the resistance between the positive (+) and negative (–) terminals.
Primary coil resistance:
    Cold:
        0.36–0.55 Ω
    Hot:
        0.45–0.65 Ω
If the resistance is not as specified, replace the ignition coil.

4. INSPECT SECONDARY COIL RESISTANCE
Using an ohmmeter, measure the resistance between the positive (+) and high–tension terminals.
Secondary coil resistance:
    Cold:
        9.0–15.4 kΩ
    Hot:
        11.4–18.1 kΩ
If the resistance is not as specified, replace the ignition coil.
5. RECONNECT HIGH–TENSION CORD TO IGNITION COIL
6. RECONNECT IGNITION COIL CONNECTOR

Ohmmeter

Positive (+)
Terminal

DISTRIBUTOR INSPECTION

NOTICE: "Cold" and "Hot" in the following sentences express the temperature of the coils themselves. "Cold" is from–10°C (14°F) to 50°C (122°F) and "Hot" is from 50° C (122°F) to 100°C (212°F).

1. REMOVE DISTRIBUTOR CAP WITHOUT DISCONNECTING HIGH–TENSION CORDS
2. REMOVE ROTOR