l
When the engine coolant temperature is high,
the
resistance is low and there is a great
flow of current in the circuit, so the gauge’s
indicator indicates in the “H” area.
l
When the engine coolant temperature is low,
the unit’s resistance is high and there is a small
flow of current in the circuit, so the gauge’s
indicator indicates in the “C” area.
<Reed switch>
l
Pulses are produced in accordance with the
vehicle speed, and vehicle-speed signals are
input to systems (the transaxle-control system,
etc.) that regulate according to the vehicle
speed.
NOTE
For operation of warning light and indicator light,
refer to
3. Systems dependent upon control according to
the vehicle speed do not function correctly.
l
Check the reed switch (located within the
speedometer).
4. The meter illumination light does not illuminate.
The tail lights illuminate.
l
Check the rheostat.
TSB Revision
METERS AND GAUGES
Troubleshooting
OPERATION
<Fuel gauge>
l
When the ignition key is at the “ON” position,
the fuel gauge is activated.
l
When there is much fuel, the unit’s resistance is
small and the current flowing in the circuit is
great, so the gauge’s indicator indicates in the
“F” area.
l
When there is little fuel, the unit’s resistance is
high and the current flowing in the circuit is
small, so the gauge’s indicator indicates in the
“E” area.
<Engine coolant temperature gauge>
l
When the ignition key is at the “ON” position,
the engine coolant temperature gauge is acti-
vated.
TROUBLESHOOTING HINTS
1. The fuel gauge doesn’t function, or shows the
incorrect indication.
(1) Disconnect the connector of the fuel gauge
unit; the “F” side is indicated when terminal
3 (FWD) or 2 (AWD) is then grounded.
l
Check the fuel gauge.
2. The engine coolant temperature gauge doesn’t
function, or shows the incorrect indication.
(1) The “H” side is indicated when the connec-
tor of the engine coolant temperature gauge
unit is disconnected and then grounded.
l
Check the engine coolant temperature
gauge unit.