Purpose
Low engine coolant temperature indicator light (blue)
The low engine coolant temperature indicator light (blue) notifies the driver that the engine coolant temperature is low and vaporization of the fuel is difficult.
High engine coolant temperature warning light (red)
The high engine coolant temperature warning light (red) notifies the driver that the engine coolant temperature is high and that there is the danger of overheating.
Function
Low engine coolant temperature indicator light (blue)
The low engine coolant temperature indicator light (blue) illuminates when the engine coolant temperature is low.
The illumination condition of the low engine coolant temperature indicator light (blue) is as shown in the figure.
High engine coolant temperature warning light (red)
The high engine coolant temperature warning light flashes at 0.5 s intervals when the engine coolant temperature exceeds the set value, and illuminates if the temperature increases further.
The flashing/illumination condition of the high engine coolant temperature warning light (red) is as shown in the figure.
Construction
Illumination, flashing, or turning off of the low engine coolant temperature indicator light (blue)/high engine coolant temperature warning light (red) is controlled by the instrument cluster microcomputer based on the engine coolant temperature signal from the PCM.
The low engine coolant temperature indicator light (blue)/high engine coolant temperature warning light (red) is set in the instrument cluster.
Operation
Low engine coolant temperature indicator light (blue)
1. When the ignition is switched ON (while engine is running), the instrument cluster receives (1) the engine coolant temperature signal from the PCM via the CAN signal.
2. The instrument cluster turns the transistor on (2) based on the engine coolant temperature signal.
3. When the transistor turns on, the ground circuit of the low engine coolant temperature indicator light (blue) is established and the low engine coolant temperature indicator light (blue) illuminates (3).
High engine coolant temperature warning light (red)
1. When the ignition is switched ON (while engine is running), the instrument cluster receives (1) the engine coolant temperature signal from the PCM via the CAN signal.
2. The instrument cluster turns the transistor on (2) intermittently for flashing and continuously for illumination based on the engine coolant temperature signal.
3. The high engine coolant temperature warning light (red) flashes (3) when the transistor is turned on intermittently, and it illuminates (3) when the transistor is turned on continuously.
Fail-safe
Function not equipped.
Filament Inspection
1. Switch the ignition ON (engine off).
2. Turn the rear window defroster switch on.
CAUTION:
Directly touching the rear window defroster filament with the lead of the
tester could damage it. Wrap aluminum foil around the end of the lead and inspect
the filament by touching it ...
Air Bag System Warning Light [Two Step Deployment Control System]
Purpose
The air bag system warning light notifies the driver of a malfunction in
the SRS air bag system.
Function
If a malfunction occurs in the SRS air bag system, the air bag system warning
light illuminates or flashes.
Construction
LEDs (light-emitting d ...
Steering Gear And Linkage Removal/Installation
CAUTION:
Performing the following procedures without first removing the ABS wheel-speed
sensor may possibly cause an open circuit in the wiring harness if it is pulled
by mistake. Before performing the following procedures, disconnect the ABS wheel-speed
sensor (axle side) and fix t ...