Air Conditioning System: 7B-54
DTC B1556: Camshaft Position (CMP) Sensor and/or Its Circuit Malfunction
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DTC Detecting Condition and Trouble Area
DTC Troubleshooting
DTC B1557: Wheel Speed Sensor and/or Its Circuit Malfunction
S5JB0A7204047
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
DTC B1561: Engine Coolant Temperature Sensor and/or Its Circuit Malfunction
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DTC Detecting Condition and Trouble Area
DTC Troubleshooting
DTC detecting condition Trouble area
HVAC control module receives error code from BCM continuously. • CMP sensor circuit
• CMP sensor
• HVAC control module
Step Action Yes No
1 DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Check ECM for DTC.
Is there DTC P0340?
Go to applicable DTC
diag. flow.
Substitute a known-
good HVAC control
module and recheck.
DTC detecting condition Trouble area
HVAC control module receives error code from BCM continuously. • Wheel speed sensor circuit
• ABS control module
• Wheel speed sensor
• HVAC control module
Step Action Yes No
1 DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Check ABS for DTC.
Is there DTC C1021, C1022 / C1025, C1026 / C1031,
C1032 / C1035, C1036?
Go to applicable DTC
diag. flow.
Substitute a known-
good HVAC control
module and recheck.
DTC detecting condition Trouble area
HVAC control module receives error code from BCM continuously. • ECT sensor circuit
• ECT sensor
• HVAC control module
Step Action Yes No
1 DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Check ECM for DTC.
Are there DTC P0116, P0117 or P0118?
Go to applicable DTC
diag. flow.
Substitute a known-
good HVAC control
module and recheck.
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