2006 ACURA CSX Service Repair Manual

Page 2265 of 2893

ACURA CSX 2006  Service Repair Manual 
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22-315
System Description
Mechanical key
(Including transponder) Immobilizer key
MICU
(Imoes circuit) Mechanical key
Steering lock assembly Immob

Page 2266 of 2893

ACURA CSX 2006  Service Repair Manual Î
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22-316Immobilizer System
Circuit Diagram
LT GRN
PNK R9
F8 LT GRN
28
21
PNK
F24 G2D2
Q1
R12
PNK R6 R16 PNK
BRN/YEL C40
BRN/YEL LG1

Page 2267 of 2893

ACURA CSX 2006  Service Repair Manual (# .
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DTC B1905:
YES
NO
YES
NO
22-317
DTC Troubleshooting
Immobilizer-Keyless Control Unit
Lost Communication with MICU (DRLOCKSW
Message)
N

Page 2268 of 2893

ACURA CSX 2006  Service Repair Manual Î
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DTC B1906:
YES
NO
YES
NO
YES
NO YES
NO
22-318Immobilizer System
DTC Troubleshooting (cont’d)
GAUGE CONTROL

Page 2269 of 2893

ACURA CSX 2006  Service Repair Manual 

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DTC B1925:
YES
NO YES
NO
YES
NO
22-319
IGNITION KEY SWITCH 6P CONNECTOR
GND
IG KEY SW
IGNITION KEY SWITCH 6P CONNEC

Page 2270 of 2893

ACURA CSX 2006  Service Repair Manual 
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YES
NO YES
NO
22-320Immobilizer System
DTC Troubleshooting (cont’d)
IGNITION KEY SWITCH 6P CONNECTOR
IMMOBILIZER-KEYLESS CONTROL UNIT 7P CONNECTOR IG KEY SW (PNK)
IG KEY SW

Page 2271 of 2893

ACURA CSX 2006  Service Repair Manual (#)
Symptom Troubleshooting by the Immobilizer Indicator Lighting Pattern
General Check before Troubleshooting
Normal operation
Immobilizer code is not i

Page 2272 of 2893

ACURA CSX 2006  Service Repair Manual Î
How to Troubleshoot
Symptom Troubleshooting of an open Power Supply and Ground Circuit
22-322Immobilizer System
Symptom Troubleshooting Information (cont’d)
Immobilizer
Indicator
Symptom
Lin