Acura RL (1996-2004 year). Manual — part 649

Courtesy Light Replacement

NOTE: The bulb or lens alone can be replaced without re-
moving the door panel.

1. Remove the door panel (see

section 20

).

2. Remove the two screws and retainer plate from be-

hind the door panel.

RETAINER PLATE

HOUSING

DOOR PANEL

BULB (3.4 W)

3. Replace the courtesy light.

LENS

3. Check continuity between the No. 2 and No. 7 termi-

nals.

• There should be continuity with the ignition key

inserted.

• There should be no continuity when the ignition

key is removed.

Ignition Key Switch Test

1. Remove the dashboard lower cover (see

section 20

).

2. Disconnect the 8P connector from the main wire

harness.

8P CONNECTOR

Wire side of
female terminals

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3. Check continuity between the No. 3 and No. 8 termi-

nals.

• There should be continuity with the switch released

(door open).

• There should be no continuity with the switch

pushed (door closed).

Entry Light Control System

Door Switch Test

Front Door Switch:

1. Remove the door panel (see

section 20

).

2. Disconnect the 8P connector from the door lock actu-

ator assembly.

Terminal side of

male terminals

Rear Door Switch:

1. Remove the rear door panel (see

section 20

).

2. Disconnect the 6P connector from the door lock actu-

ator assembly.

Terminal side of

male terminals

3. Check continuity between the No. 2 and No. 6 termi-

nals.

• There should be continuity with the switch released

(door open).

• There should be no continuity with the switch

pushed (door closed).

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REAR WINDOW DEFOGGER COIL
Test, page

23-269

Rear Window Defogger

Component Location Index

*: You can also test the switch by using the self-diagnosis function (mode 2). (See page

23-252

.)

REAR WINDOW
DEFOGGER RELAY
Test, page

23-67

UNDER-HOOD
RELAY BOX A

REAR WINDOW DEFOGGER SWITCH*
Test, page

23-269

REAR WINDOW DEFOGGER
Function Test, page

23-270

Defogger Wire Repair, page

23-270

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Control Unit Input Test

NOTE:

• Before testing, go to the Troubleshooting Guide (see page

23-244

). Be sure to go through self-diagnosis function

modes 1 and 2 (see pages

23-248

and

23-252

).

• All connector views are from the wire side of female terminals unless otherwise noted.

Multiplex Control Unit (Passenger's):

1. Remove the right kick panel (see

section 20

).

2. Disconnect the 22P and 26P connectors, then remove the passenger's unit (see page

23-246

).

3. Inspect the connector and socket terminals to be sure they are all making good contact.

• If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.
• If the terminals look OK, make the following input tests at the connector.

If a test indicates a problem, find and correct the cause, then recheck the system.
If all the input tests prove OK, the control unit must be faulty; replace it.

Disconnect the connectors from the passenger's unit.

Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained

Ignition switch ON (II)

Ignition switch at
START (III) and rear

window defogger

switch ON

YEL/GRN

YEL

BLK

Under all conditions

Check for continuity to ground:
There should be continuity

Check for voltage to ground:
There should be battery voltage.

Check for voltage to ground:

There should be battery voltage.

A19

A14

A3

A2

• Blown No. 19 (7.5 A) fuse in the

under-dash fuse/relay box

• Faulty rear window defogger relay
• Faulty indicator light
• An open in the wire

• Blown No. 13 (7.5 A) fuse in the

under-dash fuse/relay box

• An open in the wire

• Poor ground (G401, G402)
• An open in the wire

Reconnect the connectors to the passenger's unit.

Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained

• Faulty rear window defogger

switch

• Poor ground (G401, G402)
• An open in the wire

Check for voltage to ground:

There should be less than 1 V.

Ignition switch ON (II)
and rear window
defogger switch ON

YEL/BLU

A6

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