Acura RSX Honda Integra. Manual — part 31
S6M6A20A14500000000HBAT00
Symptom
Diagnostic procedure
Also check for
4-60
Cruise Control
Symptom Troubleshooting Index
•
–
–
•
•
•
•
•
•
Cruise control cannot be
set
1.
2.
3.
4.
5.
6.
7.
8.
Check for PGM-FI DTCs (see page 11-3).
Check horn operation.
Check cruise control set/decel, resume/accel, cancel
switch (see page 4-68).
Test brake pedal position switch (see page 22-95) and
check its adjustment (see page 19-6).
Test clutch pedal position switch (see page 4-71) and
check its adjustment (M/T) (see page 12-6).
Check transmission range switch (A/T) (see page
14-306).
Do cruise contrtol unit input test (see page 4-64).
Check for continuity between powertrain control
module (PCM) connector terminal E25 and cruise
control unit 14P connector terminal No. 12. (A/T)
If there is continuity, replace PCM.
2002-2004 models (see page 11-284)
2005-2006 models (see page 11-284)
If there is no continuity, repair open or short in the
wire.
Blown No. 4 (10 A)
fuse in the under-
hood fuse/relay box
Blown No. 7 (15 A)
fuse in the under-
dash fuse/relay box
Poor ground:
G101 (A/T),
G402 (M/T), G401,
G451
Faulty horn relay
Open circuit, loose or
disconnected
terminals between
cruise control unit
and cruise control
inputs
Cruise control can be set,
but the cruise control
indicator does not come
on
1.
2.
Do the gauge assembly module self-diagnostic function
procedure (see page 22-68).
Do cruise control unit input test on pin No. 10 (see page
4-64).
Open circuit, loose or
disconnected
terminals: BLU/YEL
Cruise speed is
noticeably higher or
lower than what was set
1.
2.
3.
Check cruise control actuator (see page 4-68).
Adjust the cruise control cable (see page 4-71).
Do cruise control unit input test on pin No. 12 (see page
4-64).
Excessive overshooting
or undershooting when
trying to set speed
1.
2.
3.
Check cruise control actuator (see page 4-68).
Adjust the cruise control cable (see page 4-71).
Do cruise control unit input test on pin No. 12 (see page
4-64).
Speed fluctuates on a flat
road with the cruise
control set
1.
2.
3.
Check cruise control actuator (see page 4-68).
Adjust the cruise control cable (see page 4-71).
Do cruise control unit input test on pin No. 12 (see page
4-64).
Vehicle does not
decelerate or accelerate
accordingly when the set/
decel or resume/accel
switch is pressed
1.
2.
Chcek cruise control set/decel, resume/accel, cancel
switch (see page 4-68).
Do cruise control unit input test on pins No. 6 and No. 7
(see page 4-64).
Open circuit, loose or
disconnected
terminals:
GRY/RED, LT GRN/BLK,
BLK/RED, BLK/ORN
Set speed does not
cancel (engine rpm stays
high) when the clutch
pedal is pressed (M/T)
1.
2.
Test clutch pedal position switch (see page 4-71) and
check its adjustment (see page 12-6).
Do cruise control unit input test on pin No. 14 (see page
4-64).
Short to ground in the
LT BLU wire
Set speed does not
cancel (engine rpm stays
high) when the shift lever
is moved to N (A/T)
1.
2.
Chcek transmission range switch (see page 14-306).
Do cruise control unit input test on pin No. 14 (see page
4-64).
Short to ground in the
LT BLU, BLU/YEL,
YEL/RED wires
Symptom
Diagnostic procedure
Also check for
4-61
•
•
Set speed does not cancel
when the brake pedal is
pressed
1.
2.
Test brake pedal position switch (see page 22-95) and
check its adjustment (see page 19-6).
Do cruise control unit input test on pins No. 2 and No.
5 (see page 4-64).
Short to power on BLU
wire
Set speed does not cancel
when the cruise control
main switch is turned off
1.
2.
Check cruise control main switch (see page 4-67).
Do cruise control unit input test on pin No. 13
(see page 4-64).
Short power in the
LT GRN wire
Set speed does not cancel
when the cancel switch is
pressed
1.
2.
Check cruise control set/decel, resume/accel, cancel
switch (see page 4-68).
Do cruise control unit input test on pins No. 6 and No.
7 (see page 4-64).
Open circuit, loose or
disconnected
terminals: GRY/RED,
LT GRN/BLK
Set speed will not resume
when the resume/accel
switch is pressed (with the
cruise control main switch
turned on, and set speed
temporarily canceled by
pressing the brake pedal)
1.
2.
Check cruise control set/decel, resume/accel, cancel
switch (see page 4-68).
Do cruise control unit input test on pins No. 6 and No.
7 (see page 4-64).
Faulty brake pedal
position switch
Open circuit, loose or
disconnected
terminals: LT GRY/
BLK
The transmission shifts
down slower than normal
when going uphill with the
cruise control on (A/T)
Troubleshoot the cruise control communication circuit
(see page 4-63).
Open circuit, loose or
disconnected
terminals: BLU/ORN
*01
S6M6A20A14500000000EAAT00
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[
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[
]
4-62
Cruise Control
Circuit Diagram
1
2
G401
WHT/GRN
2
3
BLK
3
2
BLU/ORN
BLK
BLK
BLK
LT BLU
BRN/WHT
BRN/YEL
BRN
CRUISE CONTROL UNIT
CPU
WHT/BLK
BLU
LT GRN
LT GRN
RED/BLK
GRY/RED
LT GRN/BLK
3
1
BLK/ORN
RED/BLK
RED/BLK
RED
BLK
LT GRN
BLK/YEL
No. 19 (100 A)
BATTERY
IGNITION SWITCH
IG1
BAT
UNDER-HOOD FUSE/RELAY BOX
WHT
PCM
1
4
2
5
4
BLU/RED
HORN
5
2
6
7
13
9
11
1
14
3
BLK
10
ORN
HORN SWITCH
12
BLU/WHT
4
BLK/ORN
No. 10 (7.5 A)
YEL
BLK/ORN
BLK
G451
1
3
4
8
No. 20*
UNDER-DASH
FUSE/RELAY BOX
TAILLIGHT RELAY
CRUISE CONTROL
MAIN SWITCH
INDICATOR
LIGHT
(0.84 W)
ILLUMINATION
LIGHT
(0.84 W)
CRUISE
CONTROL
INDICATOR
(LED)
GAUGE
ASSEMBLY
CABLE
REEL
CRUISE
CONTROL
SET/DECEL,
RESUME/
ACCEL,
CANCEL
SWITCH
CAN
CEL
RESUME/
ACCEL
CABLE
REEL
BRAKE PEDAL
POSITION
SWITCH
CRUISE CONTROL
ACTUATOR
A/T: TRANSMISSION
RANGE SWITCH
ON: D, D3
M/T: CLUTCH PEDAL
POSITION SWITCH
ON: Pedal released
HORN
RELAY
IG1 HOT in ON (II)
and START (III)
SET/
DECEL
A/T: G101
M/T: G402
A/T: PCM
M/T: VSS
BLU/YEL
2
1
A/T
No. 7
(15 A)
No. 4
(10 A)
* No. 20 (40 A): USA model
No. 20 (50 A): Canada model
*01
*02
*03
S6M6A0CA14500017661FAAT10
−
−
−
−
−
−
−
−
A/T
YES
NO
YES
NO
YES
NO
YES
NO
4-63
Cruise Control Communication Circuit Troubleshooting
CCS
(BLU/ORN)
PCM CONNECTOR D (17P)
CRUISE CONTROL UNIT 14P CONNECTOR
CCS (BLU/ORN)
CCS
(BLU/ORN)
PCM CONNECTOR D (17P)
1. Start the engine.
2. Turn on the cruise control main switch, then drive
the vehicle at speeds over 25 mph (40 km/h) with
the cruise control set.
Go to step 3.
Check the cruise control unit (see page 4-64)
or cruise control actuator (see page 4-68).
3. Turn the ignition switch OFF.
4. 2005-2006 models: Connect the HDS to the data link
connector (DLC) (see step 2 on page 11-3). Select
SCS mode using the HDS.
5. Disconnect PCM connector D (17P) and cruise
control unit 14P connector.
6. Check for continuity between PCM connector
terminal D12 and body ground.
Repair a short to ground in the wire between
PCM connector terminal D12 and the cruise control
unit 14P connector terminal No. 8.
Go to step 7.
7. Reconnect PCM connector D (17P) and the cruise
control unit 14P connector.
8. Connect a voltmeter between cruise control unit
14P connector terminal No. 8 and body ground.
Test-drive the vehicle at speeds over 25 mph
(40 km/h) with the cruise control set, and watch the
voltmeter.
Go to step 9.
Replace the cruise control unit.
9. Connect a voltmeter between PCM connector
terminal D12 and body ground. Drive the vehicle at
speeds over 25 mph (40 km/h) with the cruise
control set, and watch the voltmeter.
Check for loose connectors of the BLU/ORN
wire between the cruise control unit and the PCM. If
the wire is OK, update the PCM if it does not have
the latest software (see page 11-6), or substitute a
known-good PCM (see page 11-7), and recheck. If
the system works properly, replace the original
PCM (see page 11-284).
Repair an open in the wire between PCM
connector terminal D12 and the control unit 14P
connector terminal No. 8.
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Does the cr uise contr ol oper ate?
Is ther e continuity?
Is ther e about 1 V ?
Is ther e about 1 V ?
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