Pilot 2006-2008

3.5L V6 VIN - Auto 5

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Trouble Code: P1165



Lean A/F-11 (Bank 1 Sensor 1) Circuit Malfunction

Possible Causes:



LAF signal circuit is open or grounded (intermittent fault)
 
LAF signal circuit is shorted to heater power (intermittent)
 
LAF may be contaminated or may have failed
 
PCM has failed
 

Trouble Code: P1172



Rear Air/Fuel Ratio (A/F) Sensor (Bank 1, 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: P1174



Front Air/Fuel Ratio (A/F) Sensor (Bank 2, 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: P1508



Idle Air Control System Low RPM

Possible Causes:



Air inlet dirty, restricted or the IAC valve is stuck partially closed
 
IAC valve is damaged or has failed
 
The throttle plate is carbon fouled (it may need to be cleaned)
 
PCM has failed
 

Trouble Code: P1509



Idle Air Control System High RPM

Possible Causes:



Air inlet dirty, restricted or the IAC valve is stuck partially closed
 
IAC valve is damaged or has failed
 
The throttle plate is carbon fouled (it may need to be cleaned)
 
PCM has failed
 

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: P15AB



Engine Mount Control Unit Power Source Circuit Low Voltage

Possible Causes:



Blown fuse
 
Poor connections or loose terminals at the engine mount control unit and the body ground
 
"Open" circuit between engine mount control unit and body ground
 
"Open" circuit between engine mount control unit and power source
 
Faulty engine mount control unit
 

Trouble Code: P15AC



Engine Mount Control Unit Internal Circuit Malfunction

Possible Causes:



Poor connections or loose terminals at the engine mount control unit and the engine mount actuator
 
Faulty engine mount control unit
 

Trouble Code: P15AE



Cylinder Pause Signal Malfunction

Possible Causes:



Poor connections or loose terminals at the engine mount control unit and the rocker arm oil control solenoid
 
Open circuit betwenn the PCM and the engine mount control unit
 
Faulty engine mount control unit
 

Trouble Code: P15AF



Camshaft Position (CMP) Sensor Signal Malfunction

Possible Causes:



Poor connections or loose terminals at the PCM and the engine mount control unit
 
"Open" or "Short" circuit between the engine mount control unit and PCM
 
Faulty engine mount control unit
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P15B0



Crankshaft Position (CKP) Sensor Signal Malfunction

Possible Causes:



Poor connections or loose terminals at the engine mount control unit and the PCM
 
"Open" or "Short" to ground between engine mount control unit and the PCM
 
Faulty engine mount control unit
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P15B1



Camshft Position (CMP) Sensor / Crankshaft Position (CKP) Sensor Signal Incorrect Correlation

Possible Causes:



Poor connections or loose terminals at the PCM and the engine control mount unit
 
"Open" or "Short" between the engine mount control unit and the PCM
 
Faulty engine mount control unit
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P15BD



Cylinder Pause Signal 2 Malfunction

Possible Causes:



Poor connections or loose terminals at the engine mount control unit and the PCM
 
"Open" or "Short" circuit between the engine mount control unit and PCM
 
Faulty engine mount control unit
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P15BE



Camshaft Position (CMP) Sensor Signal Malfunction

Possible Causes:



Poor connections or loose terminals at the engine mount control unit and the PCM
 
"Open" or "Short" to ground between the engine mount control unit and PCM
 
Faulty engine mount control unit
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P15BF



Camshaft Position (CMP) Sensor Signal Intermittent Interruption

Possible Causes:



Poor connections or loose terminals at the engine mount control unit and the PCM
 
"Open" or "Short" circuit between the engine mount control unit and PCM
 
Faulty engine mount control unit
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P15C0



Crankshaft Position (CKP) Sensor Signal Intermittent Interruption

Possible Causes:



Poor connections or loose terminals at the engine mount control unit and the PCM
 
"Open" or "Short" to ground between the engine mount control unit and PCM
 
Faulty engine mount control unit
 
PCM may need to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P1658



Electronic Throttle Control System (ETCS) Control Relay ON Malfunction

Possible Causes:



Poor connections or loose terminals at the under-hood fuse/relay box (ETCS control relay) and the PCM
 
"Short" in the wire between the PCM and the under-hood fuse/relay box (ETCS control relay)
 
"Short" to power in the wire between the PCM and the under-hood fuse/relay box (ETCS control relay)
 
Faulty relay control module (under-hood fuse/relay box)
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P1659



Electronic Throttle Control System (ETCS) Control Relay OFF Malfunction

Possible Causes:



Blown fuse
 
Poor connections or loose terminals at the under-hood fuse/relay box (ETCS control relay) and the PCM
 
"Open" or "Short" in the wire between the PCM and the under-hood fuse/relay box
 
Faulty right side engine compartment wire harness
 
Faulty relay control module (under-hood fuse/relay box)
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

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: P16BD



Starter Cut Relay 2 Malfunction

Possible Causes:



Poor connections or loose terminals at starter cut relay 2 and the PCM
 
Faulty starter relay 2
 

Trouble Code: P16BE



Starter Cut Relay 1 Malfunction

Possible Causes:



Poor connections or loose terminals at starter cut relay 1 and the PCM
 
Faulty starter relay 1
 

Trouble Code: P16BF



Starter Cut Relay STRLY Circuit Malfunction

Possible Causes:



Poor connections or loose terminals at starter cut relay 1, starter cut relay 2, and the PCM
 
"Short" in the wire between the PCM and starter cut relay 1 or starter cut relay 2
 
PCM needs to be updated with the latest software
 
Faulty PCM
 

Trouble Code: P16C0



PCM A/T Control System Incomplete Update

Possible Causes:



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

Trouble Code: P16C4



Engine Mount Actuator Control Power Circuit (Stuck Off)

Possible Causes:



Blown fuse
 
Poor connections or loose terminals at the engine mount control unit and the driver's under-dash fuse/relay box (active control engine mount (ACM) control relay)
 
"Open" or "Short" to ground between engine mount control unit and driver's under-dash fuse/relay box
 
Faulty (ACM) control relay in the driver's under-dash fuse/relay box
 
Faulty engine mount control unit
 

Trouble Code: P16C5



Engine Mount Actuator Control Power Circuit (Stuck ON)

Possible Causes:



"Short" to ground in the wire between engine mount control unit and driver's under-dash fuse/relay box
 
"Short" to power in the wire between engine mount control unit and driver's under-dash fuse/relay box
 
Faulty driver's under-dash fuse/relay box
 
Faulty engine mount control unit
 

Trouble Code: P16C6



Engine Mount Actuator High Voltage During Function Test

Possible Causes:



Check for poor connections or loose terminals at the engine mount control unit, the engine mount actuator, and body ground.
 

Trouble Code: P16C7



Rear Engine Mount Actuator Control Circuit High Current

Possible Causes:



Poor connections or loose terminals at the engine mount control unit and the engine mount actuator
 
Faulty engine mount control unit
 

Trouble Code: P16C8



Rear Engine Mount Actuator Control Circuit High Current

Possible Causes:



Poor connections or loose terminals at the engine mount control unit and the engine mount actuator
 
Faulty engine mount control unit
 

Trouble Code: P16C9



Engine Mount Contol Unit Internal Circuit Malfunction

Possible Causes:



Poor connections or loose terminals at the engine mount control unit and the engine mount actuator
 
Faulty engine mount control unit
 

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: 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
 

 
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