Acura RL (1996-2004 year). Manual — part 246
OnStar System ('02 Model USA)
OnStar System Radio Frequency Modulator Unit Input Test
1. Remove the rear seat (Refer to the '96 - '01 3.5RL Service Manual, P/N 61SZ305, for the items not shown in this sec-
tion).
2. Disconnect the 25P connectors from the OnStar system radio frequency modulator unit.
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 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.
ONSTAR SYSTEM RADIO FREQUENCY MODULATOR UNIT
Wire side of
female terminals
25P CONNECTOR
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Disconnect the connector from the unit
Cavity Wire Test condition
Test: Desired result
Possible cause if result is not obtained
12
23
BRN
GRY
Under all conditions
Under all conditions
Check for continuity to ground:
There should be continuity.
Check for continuity to ground:
There should be continuity.
• An open in the wire
• An open in the wire
Reconnect the connectors from the unit
Cavity Wire Test condition
Test: Desired result
Possible cause if result is not obtained
22
21
25
20
15
14
11
8
2
GRY
GRY
YEL
YEL
GRY
GRY
BRN
GRY
YEL
Ignition switch in ACC
(I)
Ignition switch in ACC
(I)
Ignition switch in ACC (I)
OnStar "Emergency"
button pushed
Ignition switch in ACC (I)
OnStar "Emergency"
button pushed
Ignition switch in ACC (I)
OnStar "Emergency"
button pushed
Ignition switch in ACC (I)
OnStar "Emergency"
button pushed
Ignition switch in ACC (I)
OnStar "Emergency"
button pushed
Ignition switch in ACC (I)
OnStar "Emergency"
button pushed
Ignition switch in ACC (I)
OnStar "Emergency"
button pushed
Check for voltage to ground:
There should be about 10 V.
Check for voltage to ground:
There should be about 7 V.
Check for voltage to ground:
There should be about 6 V.
Check for voltage to ground:
There should be about 3 V.
Check for voltage to ground:
There should be 1 V or less.
Check for voltage to ground:
There should be 1 V or less.
Check for voltage to ground:
There should be about 6.6 V.
Check for voltage to ground:
There should be about 3.8 V.
Check for voltage to ground:
There should be about 0 V.
• 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
• An open in the wire
• An open in the wire
• An open in the wire
• An open in the wire
• Faulty OnStar button and micro-
phone
• An open in the wire
• An open in the wire
• An open in the wire
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OnStar System
OnStar Buttons and Microphone Input Test
1. 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 switches and microphone must be faulty; replace it.
NOTE: No. 1, 12 and 16 terminals are automatic inside dimming mirror power, ground and signal lines.
Cavity Wire
Test condition
Test: Desired result
Possible cause if result is not obtained
10
11
13
14
7
15
ORN
WHT/GRN
BLU/YEL
YEL/GRN
BLK
WHT
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.
Ignition switch in ACC (I)
Ignition switch in ACC (I)
Ignition switch in ACC (I)
Under all conditions
Ignition switch in ACC (I)
OnStar "DOT" button
pushed. Speak into the
microphone.
Check for voltage to ground:
There should be 4 V.
Check for voltage to ground:
There should be about 8 V.
Check for voltage to ground:
There should be about 8 V.
Check for voltage to ground:
"DOT" button pushed: 280 mV.
"OnStar" button pushed: 1 V.
"Emergency" button pushed: 1.7 V.
Check for continuity to ground:
There should be continuity.
Check for voltage to ground:
There should be about 4 V.
• An open in the wire
• An open in the wire
• An open in the wire
• An open in the wire
• An open in the wire
• An open in the wire
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Cellular Phone Antenna Replacement
1. Remove the rear ceiling light.
2. Disconnect the connector from the antenna.
3. Remove the nut from the antenna.
CELLULAR PHONE ANTENNA
CONNECTOR
NUT
5 N-m
(0.5 kgf-m, 4 Ibf-ft)
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