DaimlerChrysler Jeep Grand Cherokee 2002 Service Manual page 36

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DRIVEABILITY - DIESEL
P0105-BAROMETRIC PRESSURE CIRCUIT SIGNAL VOLTAGE TOO
HIGH —
Continued
P1680-EEPROM PLAUSIBILITY CHECKSUM ERROR
When Monitored: With the ignition on.
Set Condition: The ECM detects an internal failure.
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.
ENGINE CONTROL MODULE
INTERMITTENT CONDITION
POSSIBLE CAUSES
28

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