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Instrument Panel Illumination Diagnosis

INSTRUMENT PANEL DOES NOT ILLUMINATE WHEN LIGHTS ARE ON

Step Action Value(s) Yes No
1 Check the operation of the headlamps and the parking lamps.
Do the headlamps and the parking lamps work on both sides of the vehicle?		 - Go to Step 3. Go to Step 2.
2 Repair the headlamps and the parking lamps.
Does the instrument panel illumination turn ON after the headlamps and the parking lamps have been repaired?		 - System OK Go to Step 3.
3
  1. Disconnect the electrical connector at the dimmer control switch.
  2. Turn the parking lamps ON.
  3. Use a voltmeter to check the voltage at the dimmer control switch terminal 3.

Is the voltage equal to the specified value?		 11-14V Go to Step 5. Go to Step 4.
4 Repair the open circuit between fuse Ef21 and the dimmer control switch.
Is the repair complete?		 - System OK -
5
  1. Turn the lights OFF.
  2. At the disconnected dimmer control switch, use an ohmmeter to check the resistance between ground and terminal 2 of the dimmer switch connector.

Is the resistance equal to the specified value?		 0 Go to Step 7. Go to Step 6.
6 Repair the open circuit between ground and terminal 2 of the dimmer control switch connector.
Is the repair complete?		 - System OK -
7
  1. Turn the parking lights ON.
  2. At the disconnected dimmer control switch, check the voltage at terminal 1 of the dimmer control switch.

Is the voltage equal to the specified value?		 11-14V Go to Step 9. Go to Step 8.
8 Repair the open circuit between connector S204 and terminal 1 of the dimmer control switch.
Is the repair complete?		 - System OK -
9 Replace the dimmer control switch.
Is the repair complete?		 - System OK -
AUTOMATIC TRANSAXLE GEAR POSITION ILLUMINATION LAMP INOPERATIVE, ALL OTHER INSTRUMENT LAMPS OK

Step Action Value(s) Yes No
1 Check for fuse F10.
Is fuse F10 blown?		 - Go to Step 2. Go to Step 3.
2
  1. Check for a short circuit and repair it, if necessary.
  2. Replace the blown fuse.

Is the repair complete?		 - System OK -
3
  1. Turn the ignition ON.
  2. Use a voltmeter to check the battery voltage available at fuse F10.

Is the battery voltage equal to the specified value?		 11-14V Go to Step 5. Go to Step 4.
4 Repair the open power supply circuit to fuse F10.
Is the repair complete?		 - System OK -
5
  1. Turn the ignition switch ON.
  2. Remove the automatic transaxle position lamp.
  3. Use a voltmeter to check battery voltage available at the lamp socket.

Is the battery voltage equal to the specified value?		 11-14V Go to Step 7. Go to Step 6.
6 Repair the open circuit between the automatic transaxle position lamp socket and fuse F10.
Is the repair complete?		 - System OK -
7
  1. Remove the automatic transaxle position lamp.
  2. Use an ohmmeter to check the resistance between the ground circuit and the lamp socket.

Is the resistance equal to the value specified?		 0 System OK -
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