Wiring diagram of the radiator fans for toyota caldina 1998 model

SOURCE: Sensor Wire/Fan 1990 Toyota Corolla

These wires could go to a temperature sensor for the radiator fan. The best thing to do is to bypass the sensor and straight wire the fan to come on when the engine is running. I had one to over heat because the sensor went bad and wouldn't let the fan come on.

SOURCE: electrical wiring diagram toyota caldina diesel 2 0L

mon bras de engagement pour la transmission est tres dur pour l'embrayer

SOURCE: 1998 toyota ipsum car stereo wiring

Clck here for the correct wire colors for Toyota. http://www.autotoys.com/New_Tech/Wire_codes/TOYOTA_WIRE_COLORS/toyota_wire_colors.htm

SOURCE: Replacment of a dash light. Toyota Corolla 1998

There is a plastic garnish surrounding the instrument cluster held in by 2 philips head screws. remove the screws and gently pry the garnish from top first then sides then it should pull out.

Then remove the 3 screws holding the cluster in place (2 bottom 1 top). Once that is done gently flip the cluster bottom up and pull out some to expose the wiring harness. Remove the 3 connectors from the back and then the cluster will pull out.

There are 3 bulbs that control the overall lighting of the cluster. They are spaced about every third across the rear of the cluster. They are the larger Green knobs. Remove the 3 large green knobs and replace the bulbs with the appropriate size. You can call your local parts store to find out the size.

Its a 5 minute job and does not require the entire removal of the dash board.

-ASE Master Tech
-Lexus Senior Tech
99 Corolla Owner.

SOURCE: 1997 Toyota Caldina GT-T 3S-GTE

Hi there,
As you say the tacho/speedo come "back up to normal" after the incident, I assume that they either stop working or become erratic while the dash lights are misbehaving.
If so, this sounds like a dash wiring electrical problem.
The O/D OFF light is lit by the switch on the shifter (switch also inputs to the ECU). The ENGINE light is driven also from the ECU but the SLIP light is driven from the ABS/VSC computer, although these two computers do communicate.
Best plan of attack would be interrogate the ECU for error codes or ask a Toyota dealer to do so. At least you'll have some clue to any problems that the ECU's may have picked up.
Contact me about checking for ECU error codes if you want to attempt it yourself. Although the Caldina has an OBDC2 connector, as I understand it it's not 100% compliant, so you'll need a Toyota compatible reader. Fortunately teh codes are also output via the CHECK ENGINE light.
If there's no problems there, I'd be pulling the instrument cluster and checking for wiring problems. I'm not sure where in the world you are but most ex- JDM vehicles could have modified with timers, speed-cut or fuel-cut devices that either have been poorly installed or are playing up and causing electrical problems.