ignition CHRYSLER VOYAGER 2001 Service Manual

Symptom:
CHARGING VOLTAGE HIGH MESSAGE
When Monitored and Set Condition:
CHARGING VOLTAGE HIGH MESSAGE
When Monitored: During cranking or with the engine running.
Set Condition: When the Memory Seat Mirror Module receives three high charging
system voltage messages above 15.94 volts over the PCI Bus. Code will remain for 50
ignition cycles.
POSSIBLE CAUSES
PCM TROUBLE CODES
STORED CODE COMMUNICATION PROBLEMS
MEMORY SEAT MIRROR MODULE
INTERMITTENT PROBLEM
TEST ACTION APPLICABILITY
1 Turn ignition on.
With the DRBIIItread Engine DTCs.
Is the DTC P1594 Charging System Voltage Too High set in the Power Control
Module?All
Ye s®Refer to symptom *P1594-CHARGING SYSTEM VOLTAGE TOO
HIGH in the CHARGING category
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
No®Go To 2
2 With the DRBIIIt, erase the DTC from Memory Seat Mirror Module.
Turn the ignition switch to the Off position then start the engine and let run for one
minute.
With the DRB check for the same DTC to reset in the MSMM.
Did the same DTC reset?All
Ye s®Go To 3
No®Test complete.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
3Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially broken wires.
Note: Visually inspect the related wiring harness connectors. Look for
broken, bent, pushed out, or corroded terminals.
Note: Refer to any technical service bulletins that may apply.
Were any problems found?All
No®Replace the Memory Seat Mirror Module.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
Ye s®Repair as necessary.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
643
MEMORY SEAT

Symptom:
CHARGING VOLTAGE LOW MESSAGE
When Monitored and Set Condition:
CHARGING VOLTAGE LOW MESSAGE
When Monitored: During cranking or with the engine running.
Set Condition: When the Memory Seat Mirror Module receives three low charging system
voltage messages below 9 volts over the PCI Bus. Code will remain for 50 ignition cycles.
POSSIBLE CAUSES
PCM TROUBLE CODES
STORED CODE COMMUNICATION PROBLEMS
MEMORY SEAT MIRROR MODULE
INTERMITTENT PROBLEM
TEST ACTION APPLICABILITY
1 Turn ignition on.
With the DRBIIItread Engine DTCs.
Is the DTC P1682 Charging System Voltage Too Low set in the Power Control
Module?All
Ye s®Refer to symptom *P1682-CHARGING SYSTEM VOLTAGE TOO
LOW in the CHARGING category
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
No®Go To 2
2 With the DRBIIIt, erase the DTC from Memory Seat Mirror Module.
Turn the ignition switch to the Off position then start the engine and let run for one
minute.
With the DRB check for the same DTC to reset in the MSMM.
Did the same DTC reset?All
Ye s®Go To 3
No®Test complete.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
3Note: Visually inspect the related wiring harness. Look for any chafed,
pierced, pinched, or partially broken wires.
Note: Visually inspect the related wiring harness connectors. Look for
broken, bent, pushed out, or corroded terminals.
Note: Refer to any technical service bulletins that may apply.
Were any problems found?All
No®Replace the Memory Seat Mirror Module.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
Ye s®Repair as necessary.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
644
MEMORY SEAT

Symptom:
EEPROM REFRESH FAILURE
When Monitored and Set Condition:
EEPROM REFRESH FAILURE
When Monitored: With the ignition in the on position.
Set Condition: The Memory Seat Mirror Module has a internal EEPROM failure.
POSSIBLE CAUSES
EEPROM REFRESH FAILURE
TEST ACTION APPLICABILITY
1 If there are no possible causes remaining, view repair. All
Repair
Replace the Memory Seat Mirror Module.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
645
MEMORY SEAT

Symptom:
FRONT RISER DOWN POSITION STUCK
When Monitored and Set Condition:
FRONT RISER DOWN POSITION STUCK
When Monitored: Continuously when the PCI bus is active.
Set Condition: If the seat switch is active for 30 seconds, this code will set and the
Memory Seat Mirror Module will ignore the input until the state has changed. Three
seconds after the stuck condition is removed, the seat will resume to normal operation.
Code will remain for 50 ignition cycles.
POSSIBLE CAUSES
STORED DIAGNOSTIC TROUBLE CODE
POWER SEAT SWITCH
SEAT FRONT DOWN SWITCH SENSE WIRE SHORT TO VOLTAGE
MEMORY SEAT MIRROR MODULE
TEST ACTION APPLICABILITY
1 With the DRBIIIt, erase the DTC from Memory Seat Mirror Module.
Operate the driver's power seat and memory system.
Turn the ignition switch to the Off position then start the engine and let run for one
minute.
With the DRB check for the same DTC to reset in the MSMM.
Did the same DTC reset?All
Ye s®Go To 2
No®Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors for an intermittent condition.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
2 Disconnect the Power Seat Switch connector.
Measure the voltage of the Seat Front Down Switch Sense circuit.
Is there any voltage present?All
Ye s®Go To 3
No®Replace the Power Seat Switch.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
3 Disconnect the Power Seat Switch connector.
Disconnect the Memory Seat Mirror Module C1 connector.
Turn the ignition on.
Measure the voltage of the Seat Front Down Switch Sense circuit to ground..
Is there any voltage present?All
Ye s®Repair the Seat Front Down Switch Sense wire for a short to
voltage.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
No®Go To 4
646
MEMORY SEAT

Symptom:
FRONT RISER SENSOR OUT OF RANGE HIGH
When Monitored and Set Condition:
FRONT RISER SENSOR OUT OF RANGE HIGH
When Monitored: Continuously when the PCI bus is active.
Set Condition: This condition is immediately set when the seat motor potentiometer
feeds a value higher than the Memory Seat Mirror Module has stored in EEPROM. Code
will remain for 50 ignition cycles.
POSSIBLE CAUSES
MEMORY SEAT MIRROR MODULE SENSOR GROUND OPEN
SEAT POSITION SENSOR GROUND WIRE OPEN
5 VOLT SUPPLY SHORTED HIGH
CHECK VOLTAGE ON FRONT RISER POSITION SIGNAL CIRCUIT
FRONT RISER SENSOR HIGH
FRONT RISER SENSOR SHORT TO MOTOR
MEMORY SEAT MIRROR MODULE FRONT RISER HIGH
STORED DIAGNOSTIC TROUBLE CODE
TEST ACTION APPLICABILITY
1 With the DRBIIIt, erase the DTC from Memory Seat Mirror Module.
Operate the driver's power seat and memory system.
Turn the ignition switch to the Off position then start the engine and let run for one
minute.
With the DRB check for the same DTC to reset in the MSMM.
Did the same DTC reset?All
Ye s®Go To 2
No®Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors for an intermittent condition.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
2 Turn ignition off.
Disconnect the Driver Power Seat Front Riser Position Sensor connector.
Measure the resistance of the Seat Position Sensor Ground circuit at the Driver
Power Seat Front Riser Position Sensor connector.
Is the resistance below 5.0 ohms?All
Ye s®Go To 3
No®Go To 8
648
MEMORY SEAT

TEST ACTION APPLICABILITY
3 Disconnect the Driver Power Seat Front Riser Position Sensor connector.
Measure the voltage between Seat Sensor 5 volt supply circuit and ground.
Turn ignition on.
Is the voltage above 5.5 volts?All
Ye s®Repair the Seat Sensor 5 Volt Supply circuit for a short to battery.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
No®Go To 4
4 Turn ignition off.
Disconnect the Driver Power Seat Front Riser Position Sensor Connector.
Disconnect the Memory Seat Mirror Module C1 Connector.
Turn ignition on.
Measure the voltage between Front Riser Position Signal circuit and ground.
Is the voltage above 0.2 volts?All
Ye s®Repair the Front Riser Position Signal circuit for a short to
voltage.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
No®Go To 5
5 Turn ignition off.
Disconnect the Driver Power Seat Front Riser Position Sensor Connector.
Ensure the Memory Seat Mirror Module is fully connected before proceeding.
Turn ignition on.
With the DRBIIItin Body Memory Seat Sensors
Read the Front Riser Position Sensor voltage.
Is the voltage above 0.2 volts?All
Ye s®Go To 6
No®Replace the Seat Track Assembly.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
6 Ensure all seat and sensor connectors are connected and front riser motor is
operational.
With the DRBIIItin Body Memory Seat Sensors monitor the Front Riser Position
Sensor while operating the front riser motor to both limits.
Did the voltage ever go above 7.0 volts only when the motor was in operation?All
Ye s®Replace the Seat Track Assembly.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
No®Go To 7
7 If there are no possible causes remaining, view repair. All
Repair
Replace the Memory Seat Mirror Module.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
649
MEMORY SEAT
FRONT RISER SENSOR OUT OF RANGE HIGH ÐContinued

TEST ACTION APPLICABILITY
8 Turn ignition off.
Disconnect the Memory Seat Mirror Module C2 connector.
Disconnect the Driver Power Seat Front Riser Position Sensor connector.
Measure the resistance of the Seat Position Sensor Ground wire between the Driver
Power Seat Front Riser Position Sensor connector and the MSMM C2 connector.
Is the resistance below 5.0 ohms?All
Ye s®Replace the Memory Seat Mirror Module.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
No®Repair the open Seat Position Sensor Ground wire.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
650
MEMORY SEAT
FRONT RISER SENSOR OUT OF RANGE HIGH ÐContinued

Symptom:
FRONT RISER SENSOR OUT OF RANGE LOW
When Monitored and Set Condition:
FRONT RISER SENSOR OUT OF RANGE LOW
When Monitored: Continuously when the PCI bus is active.
Set Condition: This code is immediately set when the seat motor potentiometer feeds a
value lower than the Memory Seat Mirror Module has stored in EEPROM. Code will
remain for 50 ignition cycles.
POSSIBLE CAUSES
MEMORY SEAT MIRROR MODULE 5 VOLT SUPPLY
SEAT 5 VOLT SUPPLY WIRE SHORT TO GROUND
SEAT SENSOR 5 VOLT SUPPLY WIRE OPEN
FRONT RISER POSITION SIGNAL CIRCUIT OPEN
FRONT RISER POSITION SIGNAL CIRCUIT SHORT TO GROUND
FRONT RISER SENSOR LOW
MEMORY SEAT MIRROR MODULE FRONT RISER LOW
STORED DIAGNOSTIC TROUBLE CODE
TEST ACTION APPLICABILITY
1 With the DRBIIIt, erase the DTC from Memory Seat Mirror Module.
Operate the driver's power seat and memory system.
Turn the ignition switch to the Off position then start the engine and let run for one
minute.
With the DRB check for the same DTC to reset in the MSMM.
Did the same DTC reset?All
Ye s®Go To 2
No®Using the wiring diagram/schematic as a guide, inspect the
wiring and connectors for an intermittent condition.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
2 Ensure the Memory Seat Mirror Module is fully connected before proceeding.
Disconnect the Driver Power Seat Front Riser Position Sensor connector.
Turn ignition on.
Measure the voltage of the Seat Sensor 5 Volt Supply circuit at front riser connector.
Is the voltage above 4.5 volts?All
Ye s®Go To 3
No®Go To 7
651
MEMORY SEAT

TEST ACTION APPLICABILITY
3 Turn ignition off.
Disconnect the Driver Power Seat Front Riser Position Sensor Connector.
Disconnect the Memory Seat Mirror Module C1 Connector.
Measure the resistance of the Front Riser Position Signal circuit between the front
riser sensor and the Memory Seat Mirror Module connector.
Is the resistance below 5.0 ohms?All
Ye s®Go To 4
No®Repair the Front Riser Position Signal circuit for an open.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
4 Turn ignition off.
Disconnect the Memory Seat Mirror Module C1 connector.
Disconnect the Driver Power Seat Front Riser Position Sensor connector.
Measure the resistance of the Front Riser Position Signal circuit to ground.
Is the resistance below 1000 ohms?All
Ye s®Repair the Front Riser Position Signal circuit a short to ground.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
No®Go To 5
5 Turn ignition off.
Ensure the Memory Seat Mirror Module is fully connected before proceeding.
Disconnect the Driver Power Seat Front Riser Position Sensor Connector.
Connect a jumper wire between Seat Sensor 5 volt Supply and Front Riser Position
Signal circuits.
Turn ignition on.
With the DRBIIItselect Body Memory Seat Sensors.
Read the Front Riser Position Sensor voltage.
Is the voltage above 4.5 volts?All
Ye s®Replace the Seat Track Assembly.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
No®Go To 6
6 If there are no possible causes remaining, view repair. All
Repair
Replace the Memory Seat Mirror Module.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
7 Turn ignition off.
Disconnect the Memory Seat Mirror Module C2 connector.
Measure the resistance of the Seat Sensor 5 volt supply circuit to body ground.
Is the resistance below 100.0 ohms?All
Ye s®Repair the Seat 5 Volt Supply circuit for a short to ground.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
No®Go To 8
652
MEMORY SEAT
FRONT RISER SENSOR OUT OF RANGE LOW ÐContinued

TEST ACTION APPLICABILITY
8 Turn ignition off.
Disconnect the Memory Seat Mirror Module C2 connector.
Disconnect the Driver Power Seat Front Riser Position Sensor connector.
Measure the resistance of the Seat Sensor 5 Volt Supply wire between the Front Riser
Sensor connector and the C2 connector.
Is the resistance below 5.0 ohms?All
Ye s®Go To 9
No®Repair the Seat Sensor 5 Volt Supply circuit for an open.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
9 If there are no possible cause remaining, view repair. All
Repair
Replace the Memory Seat Mirror Module.
Perform MEMORY SYSTEM VERIFICATION TEST - VER 1.
653
MEMORY SEAT
FRONT RISER SENSOR OUT OF RANGE LOW ÐContinued