Acura 3.5 RL Manual page 1364

OnStar System ('02 Model USA)
Troubleshooting
1. Check the No. 56 (7.5 A) fuse in the under-hood
fuse/relay box and the No. 4 (10 A) fuse in the
under-dash fuse/relay box.
Are the fuses OK?
YES- Go to step 2.
NO- Find and repair the cause of the blown fuse.
2. Remove the rear seat (Refer to the '96-'01 3.5RL
Service Manual, P/N 61SZ305, for the items not
shown in this section).
3. Check for continuity between the A32 terminal of
the OnStar control unit and body ground.
Is there continuity?
YES- Go to step 4.
NO- Repair open in the BLK wire between the
OnStar control unit and G601.
4. Check for continuity between the B1 terminal of the
OnStar system interface unit and body ground.
Is there continuity?
YES- Go to step 5.
NO- Repair open in the BLK wire between the
OnStar system interface unit and G401, G402.
5. With the ignition switch OFF, press and hold the
"dot" button. Turn the ignition switch from OFF to
ACC three times and back to ACC, then release the
"dot" button.
6. The indicator will flash (green or red) if any failures
have been detected. Troubleshoot the DTCs as indi-
cated below:
Self Diagnostics Items
DTC
1 GPS signal error
Inter-device dedicated
2
bus malfunction
Deployment com-
manded circuit
3
malfunction
OnStar control unit
4
malfunction
Cellular phone select
5 service switch malfunc-
tion (button module)
Note
OnStar system
radio frequency
modulator unit com-
munications error
SRS signal out is
open
Will only shows as
"history" during
DTC display
Example: When DTC1 and DTC2 are detected
T1: 1 sec. T2: 0.2 sec. T3: 0.3 sec. T4: 2 sec. T5: 3 sec.
NOTE:
• Green indicator flashes historic (stored) failure DTCs.
• Red indicator flashes current failure DTCs.
• Current DTCs, are displayed first, followed by history
DTCs, if any.
• DTCs are displayed in numerical order for two cycles.
The indicator returns to normal function after the two
cycles.
How to clear the codes:
Press the OnStar button within 3 seconds after the sec-
ond DTC cycle.
How to enter demonstration mode:
1. When ignition switch is turned OFF within 3 sec
after DTC, system will be shifted to demonstration
mode.
2. Each signals will be appear in order below.
• 2 sec after ignition switch is OFF: Door lock
• 1 sec after door lock: door: Door unlock
• 1 sec after door unlock: Horn and exterior lights
period of 0.7 sec.