Contents: Checking the glow plug resistor…↓ Checking the coolant temperature…↓ Checking the glow plug relay (ZS-T) ↓ Checking the starter relay (ZS-T) ↓
Checking the glow plug resistor (ZS-T)
Using an ohmmeter, check for continuity between the resistor terminals.
- Resistance at 20°C - 0.65 Ohm

If there is no continuity, replace the resistor.
Checking the coolant temperature sensor (ZS-T)
1. Check the conductivity between the sensor terminals.
Resistance:
- at 20°C — 2-3 kOhm
- at 80°C - 0.2 - 0.3 kOhm

Checking the glow plug relay (ZS-T)
1. Check the conductivity between the relay terminals.

Resistance at 20°C:
- "g" and "e" - 52.2 - 80.0 Ohm
- "+B" and "G" - infinity
2. Apply battery voltage to terminals "g" and "e", check for conductivity between terminals "+B" and "G".
(The full article is posted on the website: «TOYOTAMAN»)
Checking the starter relay (ZS-T)
1. Check the conductivity between the relay terminals.

Resistance:
- "1" and "2" - 50-90 Ohm
- "3" and "5" - infinity
2. Apply battery voltage to terminals "1" and "2", check for conductivity between terminals "3" and "5".
