Celica ST Ltd Ed Liftback L4-1762cc 1.8L DOHC MFI (1997)
Distributor: Testing and Inspection
On-Vehicle Inspection
DISTRIBUTOR INSPECTION
NOTICE: "Cold" and "Hot" in the following sentences express the temperature of the coils themselves. Cold is from - 10°C (140°F) to 50°C (122°F)
and Hot is from 50°C (122°F) to 100°C (212°F).
1. DISCONNECT DISTRIBUTOR CONNECTOR
2. REMOVE DISTRIBUTOR CAP AND ROTOR
3. REMOVE IGNITION COIL DUST COVER
Ignition Coil
4. INSPECT PRIMARY COIL RESISTANCE
Using an ohmmeter, measure the resistance between the positive (+) and negative (-) terminals.
Primary coil resistance:
Cold 0.38 - 0.55 Ohms
Hot 0.45 - 0.65 Ohms
If the resistance is not as specified, replace the ignition coil.
5. 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 K ohms
Hot 11.4 - 18.1 K ohms
If the resistance is not as specified, replace the ignition coil.
Distributor
