Pacifica, 2003-2005

3.5L V6 VIN 4 Auto 5

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Trouble Code: P1607



Powertrain Control Module Internal Shutdown Timer Rationality

Possible Causes:



Fused ignition switch output is missing (off-start-run circuit)
 
PCM is damaged or it has an internal failure
 

Trouble Code: P1652



Serial Communication Link Malfunction

Possible Causes:



TCM cannot communicate with the Instrument Cluster (MIC)
 
TCM cannot communicate with the Powertrain Control Module
 
PCM/TCM is damaged or it has an internal failure
 

Trouble Code: P1687



No Communication with MIC

Possible Causes:



Other Bus problems exist
 
Intermittent wiring or connector problems exist
 
PCM has failed
 

Trouble Code: P1776



A/T Solenoid Switch Latched In Low/Reverse Position

Possible Causes:



Related DTC P0841 may be present.
 
Intermittent wiring or connector problems
 
L/R pressure switch sense circuit is open, shorted to ground or to voltage
 
Extremely low battery (system) voltage
 
Transmission pan has debris caused by valve body damage
 
Transmission internal problems, SSV sticking, or valve body damage
 
PCM has failed
 

Trouble Code: P1790



A/T Malfunction Immediately After Shift Event

Possible Causes:



Transmission internal mechanical problem
 

Trouble Code: P1793



TCM TRD Link Communication Error

Possible Causes:



Torque Management Request (TMR) sense circuit is open or is shorted to ground or to voltage
 
PCM or TCM has failed
 
Intermittent wiring and connector problems
 

Trouble Code: P1794



A/T Speed Sensor Ground Circuit Malfunction

Possible Causes:



Extremely low battery (system) voltage
 
TCM "reset" function has just been performed
 

Trouble Code: P1797



A/T Manual Shift Overheat Malfunction

Possible Causes:



ATF fluid level too high (transmission may be overfilled)
 
Engine Cooling System or engine cooling fan malfunction
 
Excessive drive time in low gear, or aggressive drive patterns
 
Transmission oil cooler is clogged or restricted
 

Trouble Code: P1861



Siphon Line Disconnected

Possible Causes:



Damage to fuel tank
 
Fuel level signal circuit is open or shorted to ground
 
Ground circuit is open
 
Internal tank components or siphon hose damaged
 
Fuel level Sensor has failed
 

Trouble Code: P2008



Short Runner Solenoid Circuit Malfunction

Possible Causes:



S/R solenoid control circuit is open
 
S/R solenoid control circuit is shorted to ground or power (B+)
 
S/R solenoid power supply circuit is open to the ASD relay
 
Short runner solenoid is damaged or it has failed
 
PCM has failed
 

Trouble Code: P2066



Fuel Level Sensor No. 2 Malfunction

Possible Causes:



Fuel tank or internal siphon hose damage
 
Fuel level signal circuit open or shorted to ground
 
Ground circuit is open
 
Fuel level Sensor malfunction
 

Trouble Code: P2067



Fuel Level Sensor No. 2 Low Input

Possible Causes:



Intermittent condition
 
Fuel level sending unit signal circuit shorted to Sensor or chassis ground
 
Fuel level sensing unit is damaged or the fuel tank is damaged
 
BCM or PCM has failed
 

Trouble Code: P2068



Fuel Level Sensor No. 2 High Input

Possible Causes:



Fuel level sending unit signal circuit shorted to Sensor or chassis ground
 
Fuel level sensing unit is damaged or the fuel tank is damaged
 
Instrument cluster module faulty
 
BCM or PCM has failed
 

Trouble Code: P2074



Manifold Pressure/Throttle Position Correlation; High Flow/Vacuum Leak

Possible Causes:



Vacuum leak in hoses or component connections
 
High resistance or resistance to ground in MAP 5v supply or signal circuit
 
MAP Sensor has failed
 
High resistance in MAP ground circuit
 
TP Sensor has failed or is improperly adjusted
 
High resistance or resistance to ground in TP Sensor 5v supply or signal circuit
 
High resistance in TP Sensor ground circuit
 
PCM has failed
 

Trouble Code: P2096



Downstream Fuel System 1/2 Lean

Possible Causes:



Exhaust leak
 
Engine mechanical problem
 
O2 Sensor has failed
 
O2 Sensor signal circuit or return circuit problem
 
Fuel contamination
 

Trouble Code: P2097



Downstream Fuel System 1/2 Rich

Possible Causes:



Exhaust leak
 
Engine mechanical problem
 
O2 Sensor No. 1/2 has failed
 
O2 Sensor No. 1/2 signal circuit or return circuit problem
 
Fuel contamination
 

Trouble Code: P2098



Downstream Fuel System 2/2 Lean

Possible Causes:



Exhaust leak
 
Engine mechanical problem
 
O2 Sensor No. 2/2 has failed
 
O2 Sensor No. 2/2 signal circuit or return circuit problem
 
Fuel contamination
 

Trouble Code: P2099



Downstream Fuel System 2/2 Rich

Possible Causes:



Exhaust leak
 
Engine mechanical problem
 
O2 Sensor No. 2/2 has failed
 
O2 Sensor No. 2/2 signal circuit or return circuit problem
 
Fuel contamination
 

Trouble Code: P2302



Ignition Coil No. 1 Secondary Circuit Insufficient Ionization

Possible Causes:



Intermittent condition
 
Cylinder No. 1 spark plug or wire is damaged or it has failed
 
Ignition Coil No. 1 is damaged or it has failed
 
Ignition coil control circuit is open or shorted to ground
 
ASD relay output circuit problems
 
PCM has failed
 

Trouble Code: P2305



Ignition Coil No. 2 Secondary Circuit Insufficient Ionization

Possible Causes:



Intermittent condition
 
Cylinder No. 2 spark plug or wire is damaged or it has failed
 
Ignition Coil No. 2 is damaged or it has failed
 
Ignition coil control circuit is open or shorted to ground
 
ASD relay output circuit problems
 
PCM has failed
 

Trouble Code: P2308



Ignition Coil No. 3 Secondary Circuit Insufficient Ionization

Possible Causes:



Intermittent condition
 
Cylinder No. 3 spark plug or wire is damaged or it has failed
 
Ignition Coil No. 3 is damaged or it has failed
 
Ignition coil control circuit is open or shorted to ground
 
ASD relay output circuit problems
 
PCM has failed
 

Trouble Code: P2311



Ignition Coil No. 4 Secondary Circuit Insufficient Ionization

Possible Causes:



Intermittent condition
 
Cylinder No. 4 spark plug or wire is damaged or it has failed
 
Ignition Coil No. 4 is damaged or it has failed
 
Ignition coil control circuit is open or shorted to ground
 
ASD relay output circuit problems
 
PCM has failed
 

Trouble Code: P2314



Ignition Coil No. 5 Secondary Circuit Insufficient Ionization

Possible Causes:



Intermittent condition
 
Cylinder No. 5 spark plug or wire is damaged or it has failed
 
Ignition Coil No. 5 is damaged or it has failed
 
Ignition coil control circuit is open or shorted to ground
 
ASD relay output circuit problems
 
PCM has failed
 

Trouble Code: P2317



Ignition Coil No. 6 Secondary Circuit Insufficient Ionization

Possible Causes:



Intermittent condition
 
Cylinder No. 6 spark plug or wire is damaged or it has failed
 
Ignition Coil No. 6 is damaged or it has failed
 
Ignition coil control circuit is open or shorted to ground
 
ASD relay output circuit problems
 
PCM has failed
 

Trouble Code: P2320



Ignition Coil No. 7 Secondary Circuit Insufficient Ionization

Possible Causes:



Cylinder No. 7 spark plug or wire is damaged or it has failed
 
Ignition Coil No. 7 is damaged or it has failed
 
Ignition coil control circuit is open or shorted to ground
 
PCM has failed
 

Trouble Code: P2323



Ignition Coil No. 8 Secondary Circuit Insufficient Ionization

Possible Causes:



Cylinder No. 8 spark plug or wire is damaged or it has failed
 
Ignition Coil No. 8 is damaged or it has failed
 
Ignition coil control circuit is open or shorted to ground
 
PCM has failed
 

Trouble Code: P2503



Charging System Voltage Low

Possible Causes:



Battery sense circuit has a high resistance condition
 
Generator ground circuit has a high resistance condition
 
Generator field ground circuit is open
 
Generator field control circuit is open or shorted to ground
 
Generator is damaged or it has failed
 

Trouble Code: U0101



No TCM Bus Message

Possible Causes:



PCI Bus unable to communicate with (DRBIII) scan tool
 
Fused ignition switch output incorrect (off-run-start)
 
Intermittent condition
 
PCM has failed
 

Trouble Code: U0110



No Fuel Level Bus Message

Possible Causes:



PCI Bus circuit open between PCM and BCM
 
Fuel level Bus message circuit failure
 
BCM has failed
 

Trouble Code: U0140



No Body Bus Message

Possible Causes:



Communication link with BCM has failed
 
PCI Bus circuit open
 
PCM has failed
 

Trouble Code: U0155



No Cluster Bus Message

Possible Causes:



Communication link with instrument cluster has failed
 
Instrument cluster operation improper or has failed
 
PCM has failed
 

Trouble Code: U0168



No SKIM Bus Message

Possible Causes:



Intermittent operation
 
PCI Bus circuit open or shorted from PCM to SKIM
 
Loss of communication between PCM and SKIM
 
SKIM or PCM has failed
 

 
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