Chrysler Town, Dodge Caravan. Manual — part 1120
P0606-ECM ERROR GATE ARRAY - COMMUNICATION
When Monitored:
With the ignition on.
Set Condition:
The ECM detects an internal failure.
P0606-ECM ERROR GATE ARRAY - COMMUNICATION NOT VERIFIED
When Monitored:
With the ignition on.
Set Condition:
The ECM detects an internal failure.
P0606-ECM ERROR GATE ARRAY - QUANTITY STOP
When Monitored:
With the ignition on.
Set Condition:
The ECM detects an internal failure.
P0606-ECM ERROR RECOVERY HAS OCCURRED
When Monitored:
With the ignition on.
Set Condition:
The ECM detects an internal failure.
P0606-ECM ERROR REDUNDANT OVERRUN MONITORING
When Monitored:
With the ignition on.
Set Condition:
The ECM detects an internal failure.
P1601-CAPACITOR VOLTAGE 1 VOLTAGE TOO HIGH
When Monitored:
With the engine running. During every 180° of engine rotation.
Set Condition:
The ECM determines that the capacitor voltage is greater than 100 volts.
P1601-CAPACITOR VOLTAGE 1 VOLTAGE TOO LOW
When Monitored:
With the engine running. During every 180° of engine rotation.
Set Condition:
The ECM determines that the capacitor voltage is less than 91 volts.
P1606-AFTER RUN SHUT OFF ERROR-INJECTION POWERSTAGE
When Monitored:
At ignition off.
Set Condition:
The ECM detects the engine speed has not fallen below 650 RPM within
0.5 seconds after ignition off.
P1606-AFTER RUN SHUT OFF ERROR-ZERO QUANTITY
When Monitored:
At ignition off.
Set Condition:
The ECM detects the engine speed has not fallen below 650 RPM within
0.5 seconds after ignition off.
P1680-EEPROM PLAUSIBILITY CHECKSUM ERROR
When Monitored:
With the ignition on.
Set Condition:
The ECM detects an internal failure.
23
DRIVEABILITY - DIESEL
P0105-BAROMETRIC PRESSURE CIRCUIT SIGNAL VOLTAGE TOO
HIGH —
Continued
P1680-EEPROM PLAUSIBILITY CODE WORD INCORRECT OR MISSING
When Monitored:
With the ignition on.
Set Condition:
The ECM detects the codeword test routine not yet performed (for injector
classification).
P1680-EEPROM PLAUSIBILITY COMMUNICATION ERROR
When Monitored:
With the ignition on.
Set Condition:
The ECM detects an internal failure.
P1680-EEPROM PLAUSIBILITY VARIATION NUMBER ERROR
When Monitored:
With the ignition on.
Set Condition:
The ECM detects incorrect software programming.
P1680-EEPROM PLAUSIBILITY VIN CHECKSUM ERROR
When Monitored:
With the ignition on.
Set Condition:
The ECM detects an internal failure.
P1680-EEPROM PLAUSIBILITY WRITE ERROR
When Monitored:
With the ignition on.
Set Condition:
The ECM detects an internal failure.
P1685-SKIM SYSTEM INVALID SECRET KEY IN EEPROM
When Monitored:
With the ignition on.
Set Condition:
The ECM detects an internal mismatch of the secret key code when
performing an internal EEPROM check.
P1685-SKIM SYSTEM WRITE ACCESS TO EEPROM FAILURE
When Monitored:
With the ignition on.
Set Condition:
The ECM detects an internal EEPROM fault.
POSSIBLE CAUSES
ENGINE CONTROL MODULE
INTERMITTENT CONDITION
24
DRIVEABILITY - DIESEL
P0105-BAROMETRIC PRESSURE CIRCUIT SIGNAL VOLTAGE TOO
HIGH —
Continued
TEST
ACTION
APPLICABILITY
1
NOTE: If the ECM detects and stores a DTC, the ECM also stores the
engine/vehicle operating conditions under which the DTC was set. Some of
these conditions are displayed on the DRB at the same time the DTC is
displayed.
NOTE: Before erasing stored DTCs, record these conditions. Attempting to
duplicate these conditions may assist when checking for an active DTC.
NOTE: This DTC indicates an internal ECM problem.
Turn the ignition on.
With the DRBIII
t, erase ECM DTCs.
Perform several engine run cycles, turning the ignition off for at least 20 seconds
between each engine run cycle.
With the DRBIII
t, read the ECM DTCs.
Did this DTC set again?
All
Yes
→ Replace and program the Engine Control Module in accordance
with the Service Information.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Go To 2
2
WARNING: WHEN THE ENGINE IS OPERATING, DO NOT STAND IN A
DIRECT LINE WITH THE FAN. DO NOT PUT YOUR HANDS NEAR THE
PULLEYS, BELTS OR FAN. DO NOT WEAR LOOSE CLOTHING.
NOTE: The conditions that set the DTC are not present at this time. The
following list may help in identifying the intermittent condition.
With the engine running at normal operating temperature, monitor the DRB
parameters related to the DTC while wiggling the wiring harness. Look for param-
eter values to change and/or a DTC to set.
Review the DTC When Monitored and Set Conditions. If possible, try to duplicate the
conditions under which the DTC was set.
Refer to any Technical Service Bulletins (TSB) that may apply.
Visually inspect the related wiring harness. Look for any chafed, pierced, pinched, or
partially broken wires.
Visually inspect the related wiring harness connectors. Look for broken, bent, pushed
out, or corroded terminals.
Were any of the above conditions present?
All
Yes
→ Repair as necessary.
Perform ROAD TEST VERIFICATION - VER-2.
No
→ Test Complete.
25
DRIVEABILITY - DIESEL
P0105-BAROMETRIC PRESSURE CIRCUIT SIGNAL VOLTAGE TOO
HIGH —
Continued
Symptom:
P0110-INTAKE AIR TEMP SENSOR CIRCUIT SIGNAL VOLTAGE
TOO HIGH
When Monitored and Set Condition:
P0110-INTAKE AIR TEMP SENSOR CIRCUIT SIGNAL VOLTAGE TOO HIGH
When Monitored:
With the ignition on.
Set Condition:
The Intake Air Temperature Sensor Signal voltage is above 4.85 volts.
POSSIBLE CAUSES
INTERMITTENT CONDITION
INTAKE AIR TEMP SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE
INTAKE AIR TEMP SENSOR GROUND CIRCUIT OPEN
INTAKE AIR TEMP SENSOR SIGNAL CIRCUIT OPEN
BOOST PRESSURE/IAT SENSOR
ENGINE CONTROL MODULE
TEST
ACTION
APPLICABILITY
1
NOTE: If the ECM detects and stores a DTC, the ECM also stores the
engine/vehicle operating conditions under which the DTC was set. Some of
these conditions are displayed on the DRB at the same time the DTC is
displayed.
NOTE: Before erasing stored DTCs, record these conditions. Attempting to
duplicate these conditions may assist when checking for an active DTC.
Turn the ignition on.
With the DRB, erase ECM DTCs.
Monitor the DRB for ECM DTCs.
Did this DTC set again?
All
Yes
→ Go To 2
No
→ Go To 6
2
Turn the ignition off.
Disconnect the Boost Pressure/IAT Sensor harness connector.
Disconnect the ECM harness connectors.
Remove the ECM/PCM Relay from the IPM.
Connect a jumper wire between cavity 30 and cavity 87 of the ECM/PCM Relay
connector.
Turn the ignition on.
Measure the voltage on the IAT Sensor Signal circuit.
Is the voltage below 1.0 volt?
All
Yes
→ Go To 3
No
→ Repair the Intake Air Temperature Sensor Signal circuit for a
short to voltage.
Perform ROAD TEST VERIFICATION - VER-2.
NOTE: Remove the jumper wire.
26
DRIVEABILITY - DIESEL
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