Jeep Cherokee 2000 Service Manual - page 1932
(M)
Malfunction Indicator Lamp (MIL) illuminated during engine operation if this DTC was
recorded (depending if required by CARB and/or EPA). MIL is displayed as an engine icon on
instrument panel.
P1682 (G)
Charging System Voltage Too Low
Battery voltage sense input below target charging voltage
during engine operation and no significant change in
voltage detected during active test of generator output
circuit.
P1682
Charging System Voltage Too Low
Charging system output voltage low.
P1683
SPD CTRL PWR Relay; or S/C 12v
Driver CKT
An open or shorted condition detected in the speed
control servo power control circuit.
P1683
Spd ctrl pwr rly, or s/c 12v driver
circuit
An open or shorted condition detected in the speed
control servo power control circuit.
P1684
Batt Loss in 50 Star
The battery has been disconnected within the last 50
starts
P1685
SKIM Invalid Key
The engine controler has received an invalid key from the
SKIM.
P1686
No SKIM BUS Messages Received
No CCD/J1850 messages received from the Smart Key
Immobilizer Module (SKIM).
P1687
No MIC BUS Message
No CCD/J1850 messages received from the Mechanical
Instrument Cluster (MIC) module.
P1688 (M)
Internal Fuel Injection Pump
Controller Failure
Internal problem within the fuel injection pump. Low
power, engine derated, or engine stops.
P1689 (M)
No Communication Between ECM
and Injection Pump Module
Data link circuit failure between ECM and fuel injection
pump. Low power, engine derated, or engine stops.
P1690 (M)
Fuel Injection Pump CKP Sensor
Does Not Agree With ECM CKP
Sensor
Problem in fuel sync signal. Possible injection pump
timing problem. Low power, engine derated, or engine
stops.
P1691
Fuel Injection Pump Controller
Calibration Error
Internal fuel injection pump failure. Low power, engine
derated, or engine stops.
P1692
DTC Set In ECM
A “Companion DTC” was set in both the ECM and PCM.
P1693 (M)
DTC Detected in Companion Module
A fault has been generated in the companion engine
control module.
P1693 (M)
DTC Detected in PCM/ECM or DTC
Detected in ECM
A “Companion DTC” was set in both the ECM and PCM.
P1694
Fault In Companion Module
No CCD/J1850 messages received from the powertrain
control module-Aisin transmission
P1694 (M)
No CCD Messages received from
ECM
Bus communication failure to PCM.
P1695
No CCD/J1850 Message From Body
Control Module
No CCD/J1850 messages received from the body control
module.
P1696
PCM Failure EEPROM Write Denied
Unsuccessful attempt to write to an EEPROM location by
the control module.
P1697
PCM Failure SRI Mile Not Stored
Unsuccessful attempt to update Service Reminder
Indicator (SRI or EMR) mileage in the control module
EEPROM.
P1698
No CCD/J1850 Message From TCM
No CCD/J1850 messages received from the electronic
transmission control module (EATX) or the Aisin
transmission controller.
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EMISSION CONTROL SYSTEMS
XJ
DESCRIPTION AND OPERATION (Continued)