124
High: High voltage condition has been detected
Low: Low voltage condition has been detected
Intermittent: Intermittent circuit condition has been
detected
Open: Open circuit condition has been detected
* After correcting condition, cycle key switch On-Off-On
**After correcting condition, cycle key switch On-Off-On, start
the engine, then cycle key switch Off-On.
P0485
Fan Relay Control Circuit Low/SG/Open
Fan fuse has blown, fan relay removed, or interconnect harness
shorted to chassis ground
Correct condition*
P0500
Vehicle Speed-Sensor
Sensor circuit signal intermittent or missing
Correct condition*, start
and drive the vehicle*
P0508
Idle Air Control System Circuit Low/SG
IAC interconnect harness shorted to chassis ground
Correct condition*
P0509
Idle Air Control System Circuit High/Open
IAC disconnected or the interconnect harness shorted to battery
power
Correct condition*
P0520
Engine Oil Sensor/Switch
Sensor or interconnect harness erratic or intermittent
Correct condition*
P0562
System Voltage Low
Battery charge condition low or the regulator/rectifier output low
Correct condition*
P0563
System Voltage High
Battery cable connections are loose or regulator/rectifier output high Correct condition*
P0601
ECM CAN Communication Shutdown
Intermittent CAN connections or unstable CAN conditions have
caused the ECM to temporarily shutdown CAN communication
Correct CAN communi-
cation issue*
P0615
Starter Relay Circuit
Start switch/button, starter relay, gearswitch or interconnect harness
erratic or intermittent
Correct condition*
P0616
Starter Relay Circuit Low
Start switch/button, starter relay or interconnect harness intermittent
or shorted to chassis ground
Correct condition*
P0617
Starter Relay Circuit High
Start switch/button, starter relay or interconnect harness intermittent
or shorted to battery power
Correct condition*
P0630
VIN Not Programmed or Incompatible
Verify the LCD gauge and ECM part numbers are correct for the
vehicle model number and VIN
Correct gauge and ECM
VIN compatibility issue*
P0642
Sensor Power Circuit Low
One or more of the sensors defective or shorted to chassis ground Correct condition*
P0643
Sensor Power Circuit High
One or more of the sensors defective or shorted to battery power
Correct condition*
P2300
Ignition Coil #1 Primary Circuit Low/SG/
Open
Ignition coil #1 or interconnect harness open or shorted to chassis
ground
Correct condition**
P2301
Ignition Coil #1 Primary Circuit High
Ignition coil #1 or interconnect harness shorted to battery power
Correct condition**
P2303
Ignition Coil #2 Primary Circuit Low/Open
Ignition coil #2 or interconnect harness open or shorted to chassis
ground
Correct condition**
P2304
Ignition Coil #2 Primary Circuit High
Ignition coil #2 or interconnect harness shorted to battery power
Correct condition**
P2531
Ignition Switch Circuit Low
Battery charge condition low or the regulator/rectifier output low
Correct condition*
P2532
Ignition Switch Circuit High
Battery cable connections are loose or regulator/rectifier output high Correct condition*
U0155
LCD Gauge to EFI ECM CAN Communica-
tion Lost
Gauge CAN circuit or interconnect harness intermittent or has failed Correct condition*
U1000
Vehicle Not Registered or Invalid PIN
Entered
An invalid registration PIN has been entered
Enter the correct regis-
tration PIN*
U1001
Vehicle Not Registered and Vehicle Limits
Enabled
An invalid registration PIN has been entered
Enter the correct regis-
tration PIN*
FUEL OFF Tilt Sensor Activation Code
Sensor activated
Restore the vehicle chas-
sis to an upright position*
Code
Fault Description
Possible Cause
Fault Recovery
