Del Sol Si VTEC L4-1590cc 1.6L DOHC (VTEC) MFI (1997)
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Heated Glass Element Switch: Testing and Inspection
NOTE: Before testing, check for a blown No.13 (7.5 A) fuse in the under-dash fuse/relay box.
1. Carefully remove the switch from the instrument panel.
Rear Window Defogger-Switch Input Test
2. Turn the ignition switch ON (II), and check the voltage at the BLK/YEL (+) and BLK (-) terminals. There should be battery voltage.
^ If there is no voltage, check for an open in the BLK/YEL wire.
^ If there is battery voltage, go to step 3.
3. Connect a jumper wire between the BLK/YEL and BLU/YEL terminals. Turn the ignition switch ON (II), and check that the rear window
defogger works; if it does, replace the defogger switch.
