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Rear Window Defogger Acura RSX I

Heated Glass/defoggers 7 illustrations ~521 words

Scheme 1

Scheme 1: Component Location Index
Scheme 1: Component Location Index

Scheme 2

Scheme 2: Circuit Diagram
Scheme 2: Circuit Diagram

Function Test

Note. Be careful not to scratch or damage the defogger wires with the tester probe. Before testing, check the No. 11 (40 A) fuse in the under-hood fuse/relay box and the No. 14 (10 A) fuse in the under-dash fuse/relay box.

Scheme 3

Scheme 3: Function Test
Scheme 3: Function Test
  1. Check for voltage between the positive terminal (A) and body ground with the ignition switch and defogger switch ON. There should be battery voltage. If there is no voltage, check for: Faulty defogger relay. Faulty window antenna coil ('02-04 models). An open in the BLK/RED, BLK/YEL, or YEL/BLK wire. Faulty climate control unit. If there is battery voltage, go to step 2.
  2. Check for voltage between the positive terminal (A) and the negative terminal (B). If there is no voltage, check for: An open in the BLK/BLU wire. Faulty window antenna coil. Poor body ground at the window antenna coil mounting bolt.
  3. Touch the voltmeter positive probe to the halfway point of each defogger wire, and the negative probe to the negative terminal. There should be about 6 V with the ignition switch and the defogger switch ON. If the voltage is as specified, the defogger wire is OK. If the voltage is not as specified, repair the defogger wire. If it is more than 6 V, there is a break in the negative half of the wire. If it is less than 6 V, there is a break in the positive half of the wire.

Defogger Wire Repair

Note. To make an effective repair, the broken section must be no longer than 1 inch.

Scheme 4

Scheme 4: Defogger Wire Repair
Scheme 4: Defogger Wire Repair

Scheme 5

Scheme 5
Scheme 5
  1. Lightly rub the area around the broken section (A) with fine steel wool, then clean it with isopropyl alcohol.
  2. Carefully mask above and below the broken portion of the defogger wire (B) with transparent tape (C).
  3. Thoroughly mix the silver conductive paint (commercially available defogger grid repair material). Using a small brush, apply a heavy coat of the silver conductive paint extending about 1/8" on both sides of the break. Allow 30 minutes to dry.
  4. Check for continuity in the repaired wire.
  5. Apply a second coat of paint in the same way. Let it dry 3 hours before removing the tape.

Scheme 6

Scheme 6: '02-04 models
Scheme 6: '02-04 models
  1. Open the hatch.
  2. Remove the hatch trim panel (see «TRIM REMOVAL/INSTALLATION - HATCH AREA»(/acura/rsx/i-2001-2004/remont/exteriorinterior-trim/#interior-trim__trim-removalinstallation-hatch-area) ).
  3. Disconnect the 1P connector (A) and 2P connector (B) from the window antenna coil (C).
  4. Check for continuity between the terminal B2 and body ground, and between terminal A1 and B1. There should be continuity. If there is no continuity, loosen the two bolts, and replace the window antenna coil.

Scheme 7

Scheme 7: Noise Condenser Capacity Test
Scheme 7: Noise Condenser Capacity Test
  1. Remove the right side trim panel (see «TRIM REMOVAL/INSTALLATION - REAR SIDE AREA»(/acura/rsx/i-2001-2004/remont/exteriorinterior-trim/#interior-trim__trim-removalinstallation-rear-side-area) ).
  2. Disconnect the 3P connector (A) from the noise condenser.
  3. Use a commercially available condenser tester. Connect the condenser tester probes and measure the condenser capacity. No. 1 and No. 2 terminal capacity: 1.0 microfarads No. 3 terminal capacity: 2.2 microfarads
  4. If capacity is not within the specification, replace the noise condenser.