Acura CSX. Manual — part 505
02
04
Five-terminal type
22-71
3
1
4
2
3
1
4
2
5
5
1
5
4
3
2
Check for continuity between the terminals.
• There should be continuity between terminals No. 1
and No. 2 when the battery positive terminal is
connected to terminal No. 5, and the battery negative
terminal is connected to terminal No. 3.
• There should be continuity between terminals No. 1
and No. 4 when power is disconnected.
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01
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01
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22-72
22-72
Ignition Switch
Test
Replacement
B
WHT
BLU
ORN
RED
YEL
A
Terminal
Position
II (ON)
I (ACC)
0 (LOCK)
RED
(ACC)
WHT
(BAT)
ORN
(IG2)
BLU
(IG1)
YEL
(ST)
III (START)
A
B
SRS components are located in the area. Review the
SRS component locations (see page 24-11), and
precautions and procedures (see page 24-13) before
doing repairs or serving.
1. Do the battery terminal disconnection procedure
(see page 22-68).
2. Remove the driver’s dashboard lower cover
(see page 20-102), and the steering column covers
(see page 17-9).
3. Disconnect the 7P connector (A) from the ignition
switch (B).
4. Check for continuity between the terminals in each
switch position according to the table.
5. If the continuity checks do not agree with the table,
replace the ignition switch (see page 22-72).
6. Do the battery terminal reconnection procedure
(see page 22-68).
SRS components are located in the area. Review the
SRS component locations (see page 24-11), and
precautions and procedures (see page 24-13) before
doing repairs or serving.
1. Do the battery terminal disconnection procedure
(see page 22-68).
2. Remove the driver’s dashboard lower cover
(see page 20-102), and the steering column covers
(see page 17-9).
3. Disconnect the 7P connector (A) from the ignition
switch (B).
4. Remove the two screws and the ignition switch.
5. Install the parts in the reverse order of removal.
6. Do the battery terminal reconnection procedure
(see page 22-68).
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22-73
Multiplex Integrated Control System
Component Location Index
GAUGE CONTROL MODULE (TACH)
IMMOBILIZER-KEYLESS CONTROL UNIT
(With built-in the receiver)
MICU
(Built into the under-dash fuse/relay box)
CLIMATE CONTROL
UNIT
HANDSFREELINK
CONTROL UNIT
Input Test, page 22-271
Input Test, page 22-109
Replacement, page 21-75
Self-diagnostic Function, page 23-368
Input Test, page 23-388
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Troubleshooting CAN Circuit Related Problems
Using the HDS (Preferred method)
Without HDS (Use only if the HDS is unavailable)
22-74
Multiplex Integrated Control System
General Troubleshooting Information
NOTE: Check the ECM/PCM for DTCs and troubleshoot ECM/PCM (see page 11-3) or F-CAN loss of communication
errors first.
1. Go to B-CAN System Diagnosis Test Mode A to check for ‘‘Connected units’’ and DTCs (see page 22-93).
2. If no DTCs are retrieved, go to B-CAN System Diagnosis Test Mode C (see page 22-95) or D (see page 22-96).
1. Check for communication circuit problems using B-CAN System Diagnostic Test (see page 22-97).
2. Check for DTCs.
3. Sort, and then troubleshoot the DTCs in the order.
–1 Battery voltage DTCs
–2 Internal error DTCs
–3 Loss of communication DTCs
NOTE: If the DTC B1000 is stored, troubleshoot DTC B1000 first.
–4 Signal error DTCs
4. If no DTCs are retrieved, use B-CAN System Diagnostic Test Mode 2 to check all inputs related to failure (see step
10 on page 22-97).
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