Honda Cars 2007-2008

1.5L L4 VIN - Auto 5

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Trouble Code: P1109



Barometric Pressure (BARO) Sensor Circuit Out of Range High

Possible Causes:



PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P1116



Engine Coolant Temperature (ECT) Sensor 1 Circuit Range/Performance Problem

Possible Causes:



Poor connections or loose terminals at ECT sensor 1 and ECT sensor 2
 
Faulty ECT sensor 1
 
Faulty ECT sensor 2
 

Trouble Code: P1128



Manifold Absolute Pressure (MAP) Sensor Signal Lower Than Expected

Possible Causes:



Dirty air cleaner element
 
Poor connections or loose terminals at the MAP sensor and the PCM
 
Faulty MAP sensor
 

Trouble Code: P1129



Manifold Absolute Pressure (MAP) Sensor Signal Higher Than Expected

Possible Causes:



Vacuum leaks
 
Poor connections or loose terminals at the MAP sensor and the PCM
 
Faulty MAP sensor
 

Trouble Code: P1157



Air Fuel Ratio (A/F) Sensor (Sensor 1) AFS Line High Voltage

Possible Causes:



Poor connections or loose terminals at the A/F sensor (Sensor 1) and the ECM/PCM
 
"Open" circuit between the ECM/PCM and the A/F sensor (Sensor 1)
 
Faulty A/F sensor (Sensor 1)
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P1172



Air/Fuel Ratio (A/F) Sensor (Sensor 1) Circuit Out of Range High

Possible Causes:



Poor connections or loose terminals at the A/F sensor (Sensor 1) and the PCM
 
Faulty A/F sensor (Sensor 1)
 

Trouble Code: P1297



Electrical Load Detector (ELD) Circuit Low Voltage

Possible Causes:



Poor connections or loose terminals at the ELD and the PCM
 
"Short" circuit between the PCM and the ELD
 
Faulty left side engine compartment wire harness
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P1298



Electrical Load Detector (ELD) Circuit High Voltage

Possible Causes:



Blown fuse
 
Poor connections or loose terminals at the ELD and the PCM
 
"Open" circuit between the fuse in the under-dash fuse/relay box and the ELD
 
"Open" in the wire between the ELD and ground
 
Faulty left side engine compartment wire harness
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P1454



Fuel Tank Pressure (FTP) Sensor Circuit Range/Performance Problem

Possible Causes:



Poor connections or loose terminals at the FTP sensor, the EVAP canister vent shut valve, and the PCM
 
Blockage in the EVAP canister, canister filter, vent hoses, and drain joint,
 
Blockage in the FTP sensor air tube or vent
 
Faulty FTP sensor
 
Faulty EVAP canister vent shut valve
 

Trouble Code: P1549



Charging System High Voltage

Possible Causes:



Poor connections or loose terminals at the alternator and the main under-hood fuse box
 
Faulty alternator
 

Trouble Code: P1683



Throttle Valve Default Position Spring Performance Problem

Possible Causes:



Poor connections or loose terminals at the throttle body and the PCM
 
Faulty throttle body
 

Trouble Code: P1684



Throttle Valve Return Spring Performance Problem

Possible Causes:



Poor connections or loose terminals at the throttle body and the PCM
 
Faulty throttle body
 

Trouble Code: P16BB



Alternator B Terminal Circuit Low Voltage

Possible Causes:



Faulty battery
 
Poor connections or loose terminals at the alternator and the main under-hood fuse box
 
"Open" circuit between the alternator and the main under-hood fuse box
 
Faulty alternator
 

Trouble Code: P16BC



Alternator FR Terminal Circuit/IGP Circuit Low Voltage

Possible Causes:



Blown fuse
 
Poor connections or loose terminals at the alternator connector
 
Poor alternator ground
 



Faulty alternator
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P1717



Open in Transmission Range Switch ATPRVS Switch Circuit

Possible Causes:



Check for proper transmission range switch installation, adjust the shift cable if needed
 
"Open" circuit between PCM connector terminal and the transmission range switch
 
Faulty transmission range switch
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P1746



Hydraulic Control System (Cut Valve A Stuck OFF or Cut Valve B Stuck ON)

Possible Causes:



Low or dirty transmission fluid
 
Inspect the strainer for metal debris or excessive clutch material, if present replace the transmission
 
Faulty cut valve A in the servo body, cut valve B in the main valve body, or replace the main valve body
 

Trouble Code: P1747



Hydraulic Control System (Cut Valve A Stuck ON or Cut Valve B Stuck OFF)

Possible Causes:



Low or dirty transmission fluid
 
Inspect the strainer for metal debris or excessive clutch material, if present replace the transmission
 
Faulty cut valve A in the servo body, cut valve B in the main valve body, or replace the main valve body
 

Trouble Code: P1780



Problem in Shift Control System (Transmission is in Default Mode)

Possible Causes:



Poor connections and loose terminals at the PCM
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P2101



Electronic Throttle Control System (ETCS) Malfunction (Includes Hybrid Models)

Possible Causes:



Dirty throttle body
 
Poor connections or loose terminals at the throttle body and the PCM
 
"Open" circuit between the throttle body and the PCM
 
Faulty throttle body
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P2108



Throttle Actuator Control Module Problem

Possible Causes:



Poor connections or loose terminals at the throttle body, the throttle actuator control module and the PCM
 
Faulty throttle actuator control module
 

Trouble Code: P2118



Throttle Actuator Current Range/Performance Problem (Includes Hybrid Models)

Possible Causes:



Poor connections or loose terminals at the throttle body and the PCM
 
"Short" circuit between the PCM (ETCSM-line) and (ETCSM+line)
 
Faulty throttle body
 
Faulty throttle actuator control module
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P2122



APP Sensor A or 1 (TP Sensor D) Circuit Low Voltage (Includes Hybrid Models)

Possible Causes:



Poor connections or loose terminals at APP sensor A and the PCM
 
"Open" or "Short" circuit between the PCM and APP sensor A
 
Faulty APP sensor
 
Faulty accelerator pedal module
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P2123



APP Sensor A or 1 (TP Sensor D) Circuit High Voltage (Includes Hybrid Models)

Possible Causes:



Poor connections or loose terminals at APP sensor A and the PCM
 
"Open" circuit between the PCM and APP sensor A
 
Faulty APP sensor
 
Faulty accelerator pedal module
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P2127



APP Sensor B or 2 (Throttle Position (TP) Sensor E) Circuit Low Voltage (Includes Hybrid Models)

Possible Causes:



Poor connections or loose terminals at APP sensor B and the PCM
 
"Open" or "Short" circuit between the PCM and APP sensor B
 
Faulty accelerator pedal module
 
Faulty APP sensor
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P2128



APP Sensor B or 2 (Throttle Position (TP) Sensor E) Circuit High Voltage (Includes Hybrid Models)

Possible Causes:



Poor connections or loose terminals APP sensor B and the PCM
 
"Open" circuit between the PCM and APP sensor B
 
Faulty accelerator pedal module
 
Faulty APP sensor
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P2135



Throttle Position (TP) Sensor A/B or 1/2 Incorrect Voltage Correlation (Includes Hybrid Models)

Possible Causes:



Poor connections or loose terminals at the throttle body and the PCM
 
"Short" circuit between the PCM (TPSA line) and the (TPSB line)
 
Faulty throttle body
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P2138



APP Sensor A/B or 1/2 (Throttle Position (TP) Sensor D/E) Incorrect Voltage Correlation (Includes Hybrid Models)

Possible Causes:



Poor connections or loose terminals at the APP sensor and the PCM
 
"Short" circuit between PCM (APSA line) and (APSB line)
 
Faulty accelerator pedal module
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P2176



Throttle Actuator Control System Idle Position Not Learned (Includes Hybrid Models)

Possible Causes:



Dirty throttle body
 
Poor connections or loose terminals at the throttle body and the PCM
 
"Open" circuit between the throttle body and the PCM
 
Faulty throttle body
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P2183



Engine Coolant Temperature (ECT) Sensor 2 Circuit Range/Performance Problem (Includes Hybrid Models)

Possible Causes:



Poor connections or loose terminals at ECT sensor 1, ECT sensor 2, and the PCM
 
Faulty ECT sensor 1
 
Faulty ECT sensor 2
 

Trouble Code: P2184



Engine Coolant Temperature (ECT) Sensor 2 Circuit Low Voltage (Includes Hybrid Models)

Possible Causes:



Poor connections or loose terminals at ECT sensor 2 and the PCM
 
"Short" in the wire between ECT sensor 2 and the PCM
 
Faulty ECT sensor 2
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P2185



Engine Coolant Temperature (ECT) Sensor 2 Circuit High Voltage (Includes Hybrid Models)

Possible Causes:



Poor connections or loose terminals at ECT sensor 2 and the PCM
 
"Open" in the wire between the PCM and ECT sensor 2
 
Faulty ECT sensor 2
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P2195



A/F Sensor (Sensor 1) Signal Stuck Lean (Includes Hybrid Models)

Possible Causes:



Dirty or Faulty MAF sensor/IAT sensor (If equipped)
 
Loose A/F sensor
 
Poor connections or loose terminals at the A/F sensor (Sensor 1) and the PCM
 
Faulty A/F sensor (Sensor 1)
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P2227



Barometric Pressure (BARO) Sensor Circuit Range/Performance Problem

Possible Causes:



Dirty air cleaner element
 
Faulty BARO sensor
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P2228



Barometric Pressure (BARO) Sensor Circuit Low Voltage

Possible Causes:



Poor connections or loose terminals at the PCM
 
Faulty BARO sensor
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P2229



Barometric Pressure (BARO) Sensor Circuit High Voltage

Possible Causes:



Faulty BARO sensor
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P2238



Air/Fuel Ratio (A/F) Sensor (Sensor 1) AFS- Circuit Low Voltage

Possible Causes:



Poor connections or loose terminals at the A/F sensor (Sensor 1) and the PCM
 
"Short" circuit between the PCM and the A/F sensor (Sensor 1)
 
Faulty A/F sensor (Sensor 1)
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P2252



Air/Fuel Ratio (A/F) Sensor (Sensor 1) AFS- Circuit Low Voltage

Possible Causes:



Poor connections or loose terminals at the A/F sensor (Sensor 1) and the ECM/PCM
 
"Short" in the wire between the ECM/PCM and the A/F sensor (Sensor 1)
 
Faulty A/F sensor (Sensor 1)
 
PCM may need to be updated with the latest software
 
Faulty ECM/PCM
 

Trouble Code: P2271



Secondary HO2S (Sensor 2) Circuit Signal Stuck Rich

Possible Causes:



Poor connections or loose terminals at the secondary HO2S (Sensor 2) and the PCM
 
Faulty secondary HO2S (Sensor 2)
 

Trouble Code: P2279



Intake Air System Leak

Possible Causes:



Vacuum leaks at the PCV valve, the PCV hose, the purge (PCS) line, the throttle body, the intake manifold, and the brake booster hose
 
Incorrect camshaft timing
 

Trouble Code: P2413



Exhaust Gas Recirculation (EGR) System Malfunction

Possible Causes:



Clogged intake manifold EGR port or EGR valve
 
Poor connections or loose terminals at the EGR valve and the PCM
 
"Open" in the wire between the EGR valve and ground
 
"Open" or "Short" circuit between the PCM and the EGR valve
 
Faulty EGR valve
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

 
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