Acura 3.5 RL Manual page 1366

OnStar System ('02 Model USA)
OnStar Control Unit Input Test (cont'd)
Disconnect the connectors from the unit
Cavity Wire
Under all conditions
WHT/YEL
B17
Ignition switch in ACC
B22 WHT
(I)
Under all conditions
A32 BLK
Under all conditions
B6 ORN
Under all conditions
RED/GRN
B3
B2
BLK Under all conditions
B9
B18
B32
Reconnect the connectors to the unit
Cavity Wire
Front passenger's door
lock key cylinder in neu-
tral position
GRN/WHT
B20
Front passenger's door
lock key cylinder in
locked position
Front passenger's door
lock key cylinder in neu-
tral position
GRN/RED
B5
Front passenger's door
lock key cylinder in
unlocked position
Under all conditions
A8 GRY
Under all conditions
BRN/YEL
A25
OnStar "DOT" button
pushed and human
WHT
A10
advisor voice comes
on.
OnStar "DOT" button
pushed and human
BLU/RED
A11
advisor voice comes
on.
Under all conditions
A23 BLK
Ignition switch in ACC
(I). OnStar "DOT" but-
A24 WHT
ton pushed. Speak into
the microphone.
Test condition
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:
All horns should sound.
Connect to ground:
The taillights should come on.
Check for continuity to ground:
There should be continuity.
Test condition
Check for voltage to ground:
There should be battery voltage.
Check for voltage to ground:
There should be less than 1 V.
Check for voltage to ground:
There should be battery voltage.
Check for voltage to ground:
There should be less than 1 V.
Check for continuity to ground:
There should be continuity.
Check for continuity to ground:
There should be continuity.
Check for voltage between the A10
terminal and audio unit C9 or B2
terminal:
There should be 1 V or less.
Check for voltage between the A11
terminal and audio unit C8 or B3
terminal:
There should be 1 V or less.
Check for continuity to ground:
There should be continuity.
Check for voltage to ground:
There should be about 4 V.
Test: Desired result
Test: Desired result
Possible cause if result is not obtained
• Blown No. 56 (7.5 A) fuse in the
under-hood fuse/relay box
• An open in the wire
• Blown No. 4 (10 A) fuse in the
under-dash fuse/relay box
• An open in the wire
• Poor ground (G601)
• An open in the wire
• Blown No. 39 (15 A) fuse in the
under-hood fuse/relay box
• Faulty horn relay
• Either horn faulty
• Poor ground (G201)
• An open in the wire
• Blown No. 1 (15 A) fuse in the
under-dash fuse/relay box
• Faulty taillight relay
• Faulty taillight system
• An open in the wire
• An open in the wire
Possible cause if result is not obtained
• Faulty front passenger's door lock
key cylinder switch
• Poor ground (G401, G402)
• An open in the wire
• Short to ground (if you don't have
5 V when you should)
• An open in the wire
• An open in the wire
• Faulty audio unit
• Faulty speaker
• An open in the wire
• Faulty audio unit
• Faulty speaker
• An open in the wire
• Faulty OnStar buttons and microphone
• An open in the wire
• Faulty OnStar buttons and micro-
phone
• An open in the wire