Honda Cars 2007-2008

3.5L V6 VIN - Auto 4

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Trouble Code: P0430



Front Bank Catalyst System Efficiency Below Threshold (Bank 2)

Possible Causes:



Poor connections or loose terminals at the secondary HO2S (sensor 2) and the PCM
 
Faulty (Bank 2) WU-TWC
 

Trouble Code: P0443



Evaporative Emission (EVAP) Canister Purge Valve Circuit Malfunction

Possible Causes:



Poor connections or loose terminals at the EVAP canister purge valve and the PCM
 
"Open" or "short" between the EVAP canister purge valve and the PCM
 
"Open" or "short" between the EVAP canister purge valve and the under-dash fuse/relay box
 
EVAP canister purge valve
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P0451



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

Possible Causes:



Poor connections or loose terminals at the FTP sensor and the PCM
 
Faulty FTP sensor
 

Trouble Code: P0452



Fuel Tank Pressure (FTP) Sensor Circuit Low Voltage

Possible Causes:



Poor connections or loose terminals at the FTP sensor and the PCM
 
"Open" or "Short" in the wire(s) between the PCM and the FTP sensor
 
Faulty FTP sensor
 

Trouble Code: P0456



EVAP System Very Small Leak Detected

Possible Causes:



Faulty or loose fuel fill cap
 
Poor connection or damage at the fuel tank vapor control valve hose
 
Poor connections or loose terminals at the FTP sensor, the EVAP canister
 



Faulty EVAP canister vent shut valve
 
Faulty FTP sensor O-ring
 
Faulty fuel tank vapor control valve hose
 
Faulty EVAP canister vent shut valve case and O-ring
 
Faulty EVAP canister
 
Faulty fuel tank unit base gasket, and/or fuel tank
 

Trouble Code: P0457



Evaporative Emission (EVAP) System Leak Detected/Fuel Fill Cap Loose or Missing

Possible Causes:



Faulty fuel fill cap seal missing or damaged, fuel fill pipe damaged
 
Poor connections or loose terminals at the FTP sensor, the EVAP canister vent shut valve, and the PCM
 
Faulty routing of the EVAP canister vent tube
 
Faulty EVAP canister vent shut valve
 

Trouble Code: P0461



Fuel Level Sensor (Fuel Gauge Sending Unit) Range/Performance Problem

Possible Causes:



Poor connections or loose terminals at the fuel gauge sending unit and the gauge control module
 
Faulty fuel gauge sending unit
 

Trouble Code: P0462



Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit Low Voltage

Possible Causes:



Poor connections or loose terminals at the gauge control module, the fuel gauge sending unit, and the secondary fuel gauge sending unit
 
"Short" circuit between the gauge control module (signal line) and the fuel gauge sending unit
 
Faulty fuel gauge sending unit
 
Faulty gauge control module
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P0463



Fuel Level Sensor (Fuel Gauge Sending Unit) Circuit High Voltage

Possible Causes:



Poor connections or loose terminals at the gauge control module and the fuel gauge sending unit
 
"Open" in the wire between the gauge control module (GND line) and the fuel gauge sending unit
 
"Open" in the wire between the gauge control module (signal line) and the fuel gauge sending unit
 
Faulty fuel gauge sending unit
 
Faulty gauge control module
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P0496



Evaporative Emission (EVAP) System High Purge Flow Detected

Possible Causes:



Poor connections or loose terminals at the FTP sensor, the EVAP canister purge valve, the EVAP canister vent shut valve, and the PCM
 
Faulty EVAP canister purge valve
 

Trouble Code: P0497



Evaporative Emission (EVAP) System Low Purge Flow Detected

Possible Causes:



Faulty or Loose fuel fill cap
 
Poor connections or loose terminals at the FTP sensor, the EVAP canister purge valve, the EVAP canister vent shut valve, and the PCM
 
Blockage in the vacuum hose between the EVAP canister purge valve and the EVAP canister
 
Faulty EVAP canister purge valve
 

Trouble Code: P0498



Evaporative Emission (EVAP) Canister Vent Shut Valve Control Circuit Low Voltage

Possible Causes:



Poor connections or loose terminals at the EVAP canister vent shut valve and the PCM
 
"Open" or "Short" in the wire between the EVAP canister vent shut valve and the PCM
 
"Open" in the wire between the EVAP canister vent shut valve and the under-hood fuse/relay box (PGM-FI sub-relay)
 
Faulty EVAP canister vent shut valve
 

Trouble Code: P0499



Evaporative Emission (EVAP) Canister Vent Shut Valve Control Circuit High Voltage

Possible Causes:



Poor connections or loose terminals at the EVAP canister vent shut valve and the PCM
 
PCM may need to be updated with the latest software
 
Faulty PCM
 
Faulty EVAP canister vent shut valve
 

Trouble Code: P0506



Idle Control System RPM Lower Than Expected

Possible Causes:



Dirt, carbon, or damage in the throttle bore
 
Damaged air cleaner element
 
Incorrect DATA LIST parameter conditions
 
Poor connections or loose terminals at the throttle body and the PCM
 
Faulty throttle body
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P0507



Idle Control System RPM Higher Than Expected

Possible Causes:



Vacuum leaks
 
Faulty PCV valve
 
Dirty throttle bore
 
Faulty EVAP canister purge valve
 
Poor connections or loose terminals at the throttle body and the PCM
 
Improper PCM idle learn procedure
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P050A



Cold Start Idle Air Control System Performance Problem

Possible Causes:



Dirty air cleaner element
 
Damage air cleaner element or housing
 
Dirty or damaged throttle bore
 
Poor connections or loose terminals at the throttle body, the MAF sensor/IAT sensor
 
Faulty throttle body
 
Faulty MAF sensor/IAT sensor
 

Trouble Code: P050B



Cold Start Ignition Timing Control System Performance Problem

Possible Causes:



Poor connections or blockage at the air intake duct
 
Damaged air cleaner housing or dirty air cleaner
 
Damaged CKP sensor and/or the CKP sensor pulser plate
 
Faulty throttle body
 
Dirty or faulty MAF sensor/IAT sensor 1
 
Faulty ECT SENSOR 1 and/or ECT SENSOR 2
 
Check and repair any problems with the following items, Engine compression, VTEC system, Engine oil, A/C system, Power steering system
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P0562



Charging System Low Voltage

Possible Causes:



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

Trouble Code: P0563



Engine Control Module (ECM) Powertrain Control Module (PCM) Power Source Circuit Unexpected Voltage

Possible Causes:



Faulty PGM-FI main relay 1
 
Poor connections or loose terminals under-hood fuse/relay box (PGM-FI main relay 1) and the fuse
 
"Short" to power in the wire between the PCM (PGM-FI main relay 1)
 
ECM/PCM may need to be updated with the latest software
 
Faulty ECM/PCM
 

Trouble Code: P0602



ECM/PCM Programming Error

Possible Causes:



ECM/PCM needs to be updated with the latest software
 
Faulty ECM/PCM
 

Trouble Code: P060A



Powertrain Control Module (PCM) Internal Control Module Malfunction

Possible Causes:



PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P062F



ECM/PCM Internal Control Module Keep Alive Memory (KAM) Error

Possible Causes:



ECM/PCM needs to be updated with the latest software
 
Faulty ECM/PCM
 

Trouble Code: P0630



VIN Not Programmed or Mismatch

Possible Causes:



ECM/PCM needs to be updated with the latest software
 
Faulty ECM/PCM
 

Trouble Code: P0641



Sensor Reference Voltage A Malfunction

Possible Causes:



Intermittent condition
 
"Open" or "Short" circuit in the following 5-volt reference circuits, APP sensor, Throttle body, Input shaft (mainshaft) speed sensor
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P0685



ECM/PCM Power Control Circuit Malfunction

Possible Causes:



ECM/PCM needs to be updated with the latest software
 
Faulty ECM/PCM
 

Trouble Code: P0705



Transmission Range Switch Circuit (Multiple Shift-position Input)

Possible Causes:



Intermittent "Short" in the wires between the transmission range switch and PCM
 
"Short" to ground in the wire between PCM connector terminal and the transmission range switch
 
"Open" in the wire between PCM connector terminals and ground
 
Faulty transmission range switch
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P0706



Open in Transmission Range Switch Circuit

Possible Causes:



Poor connections or loose terminals at the transmission range switch and the PCM
 
"Open" in the wire between the transmission range switch and ground
 
"Open" in the wire between the transmission range switch and PCM
 
Faulty transmission range switch
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P0711



Problem in ATF Temperature Sensor Circuit

Possible Causes:



Faulty ATF temperature sensor or temperature sensor/shift solenoid harness
 
Poor connections or loose terminals between the ATF temperature sensor and the PCM
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P0712



Short in ATF Temperature Sensor Circuit

Possible Causes:



"Short" between the ATF temperature sensor and the PCM
 
Faulty ATF temperature sensor or temperature sensor/shift solenoid harness
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P0713



Open in ATF Temperature Sensor Circuit

Possible Causes:



Poor connections or loose terminals at the ATF temperature sensor and the PCM
 
"Open" circuit between PCM connector terminal and the ATF temperature sensor
 
Faulty ATF temperature sensor or temperature sensor/shift solenoid harness
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P0716



Problem in Input Shaft (Mainshaft) Speed Sensor Circuit

Possible Causes:



Loose or poor connections at the PCM and input shaft (mainshaft) speed sensor connectors
 
Poor grounds
 
Faulty or improperly installed Input Shaft (Mainshaft) Speed Sensor
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P0717



Problem in Input Shaft (Mainshaft) Speed Sensor Circuit (No Signal Input)

Possible Causes:



Loose or poor connections at the PCM and input shaft (mainshaft) speed sensor connectors
 
"Open" in the wires between PCM connector terminals and ground (G101), or repair poor ground
 
Faulty or improperly installed Input Shaft (Mainshaft) Speed Sensor
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P0718



Input Shaft (Mainshaft) Speed Sensor Intermittent Failure

Possible Causes:



Poor connections or loose terminals at the input shaft (mainshaft) speed sensor and the PCM
 
"Open" or "Short" in the wire between PCM connector terminal and the input shaft (mainshaft) speed sensor connector
 
"Open" in the wires between PCM connector terminals and ground
 
Faulty input shaft (mainshaft) speed sensor
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P0720



Output Shaft (Countershaft) Speed Sensor Circuit Malfunction

Possible Causes:



Poor connections or loose terminals at the output shaft (countershaft) speed sensor and the ECM
 
"Open" or "Short" circuit between the ECM and the output shaft (countershaft) speed sensor
 
Faulty output shaft (countershaft) speed sensor
 
ECM may need to be updated with the latest software
 
Faulty ECM
 

Trouble Code: P0723



Output Shaft (Countershaft) Speed Sensor Intermittent Failure

Possible Causes:



Faulty or improperly installed output shaft (countershaft) speed sensor
 
Poor connections and loose terminals at the output shaft (countershaft) speed sensor and the PCM
 
"Open" in the wires between PCM connector terminals and ground or poor ground
 
"Open" or "Short" in the wire between PCM connector terminal and the output shaft (countershaft) speed sensor connector
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P0731



Problem in 1st Clutch and 1st Clutch Hydraulic Circuit (1st gear incorrect ratio)

Possible Causes:



Low or dirty transmission fluid
 
Faulty shift valves B and C
 
Faulty ATF pump and the regulator valve
 
Inspect the strainer for metal debris or excessive clutch material, if present
 

Trouble Code: P0732



Problem in 2nd Clutch and 2nd Clutch Hydraulic Circuit (2nd gear incorrect ratio)

Possible Causes:



Low or dirty transmission fluid
 
Faulty shift valves A, B and C
 
Faulty ATF pump and the regulator valve
 
Inspect the strainer for metal debris or excessive clutch material, if present
 

Trouble Code: P0733



Problem in 3rd Clutch and 3rd Clutch Hydraulic Circuit (3rd gear incorrect ratio)

Possible Causes:



Low or dirty transmission fluid
 
Faulty shift valves A, B, and C are stuck
 
Faulty ATF pump and the regulator valve
 
Inspect the strainer for metal debris or excessive clutch material, if present
 

Trouble Code: P0735



Problem in 5th Clutch and 5th Clutch Hydraulic Circuit (5th gear incorrect ratio)

Possible Causes:



Low or dirty transmission fluid
 
Faulty shift valves A, B, C, and D are stuck
 
Faulty ATF pump and the regulator valve
 
Inspect the strainer for metal debris or excessive clutch material, if present
 

Trouble Code: P0741



Torque Converter Clutch Hydraulic Circuit 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 shift solenoid valve D
 
Faulty torque converter clutch mechanism, torque converter clutch hydraulic circuit, lock-up shift valve, lock-up control valve, or replace the transmission
 

 
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