Acura NSX 1997 Service Manual page 985

Main Menu
Lighting System
Daytime Running Lights Control Unit Input Test (Canada)
Remove the glove box lower panel and glove box.
Disconnect the 4P and 8P connectors from the daytime
running lights control unit.
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 any 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.
Wire Test condition
Under all conditions
BLK
Under all conditions
PNK/WHT
Ignition switch ON (II)
BLK/RED
Headlight switch
PNK/BLK (headlights on)
Under all conditions
YEL/BLK
Ignition switch ON (II)
GRN/RED
Parking brake switch ON
GRN/YEL
(parking brake lever up)
Table of Contents
4P CONNECTOR
GRN/RED
Test: Desired result
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.
Check for voltage to ground:
There should be battery
voltage.
Check for continuity to ground:
There should be continuity.
Connect to ground: The brake
system light should come on.
Check for continuity to ground:
There should be continuity.
DAYTIME RUNNING LIGHTS
CONTROL UNIT (Canada)
View from wire side
Possible cause if result is not obtained
• Poor ground (G401, G402, G403)
• An open in the wire
• Blown No. 44 (10 A) fuse
• An open in the wire
• Blown No. 3 (7.5 A) fuse
• An open in the wire
• Blown No. 43 (15 A) fuse
• Faulty headlight switch
• An open in the wire
• Blown daytime running light bulbs
• Poor ground (G301)
• An open in the wire
• Blown No. 5 (15 A) fuse
• Blown bulb
• An open in the wire
• Faulty parking brake switch
• An open in the wire