9000 L4-1985cc 2.0L DOHC Turbo EFI (1987)
On the right-hand side of the steering Column
22A
Fuse board
Behind the access panel in the glove compartment
45
Coolant temperature transmitter
On the left-hand side of the thermostat housing
47C
Coolant temperature gauge
In the combined instrument on the facia
67
Six-pole connector
At the windscreen wiper motor
159
Distribution terminal +15
In the electrical distribution box behind the glove compartment
Operation
The temperature gauge shows the engine coolant temperature.
When the ignition switch is set to the drive position, temperature gauge 47C will be supplied across fuse 13 and distribution terminal +15. The other
terminal of the gauge is connected to earth across coolant temperature transmitter 45.
Changes in the coolant temperature will affect the resistance of the transmitter, and the gauge will thus show the prevailing engine temperature.
Fault-tracing hints
The temperature gauge will be energized when the ignition switch is set to the drive position.
1. Check fuse 13 and check that the supply to it is live.
2. Check that the supply to the temperature gauge is live.
3. Check transmitter 45.
4. Check the connector, wiring and earth connections.
Resistance reading for temperature transmitter at 90°C: 46.9-55.5 ohm
