Efi Diagnostics; Data Display Definitions - Polaris 2015 RZR 900 Service Manual

EFI DIAGNOSTICS

Data Display Definitions

The table shown below is a guide for using the Data Display to diagnose a vehicle. A more accurate representation is
to compare the readings to a known good vehicle under the same conditions.
DATA DISPLAY
DEFINITION
ITEM
ECU control of the
AWD Driver
Input to ECU to
AWD Switch indicate if AWD is
switched ON or OFF
Reading of
atmospheric
Barometric Pressure
Voltage seen on the
Battery Voltage
power wire feeding
Indicates if the brake
pedal is being
Brake Switch
Indicates if the ECU
Cam Sensor Signal is seeing a hall-effect
Status signal from the cam
ECU control of the
Cooling Fan Relay
cooling fan relay
Driver
Indicates if the ECU
Crankshaft Signal is seeing a hall-effect
Present signal from the
crankshaft sensor
Cycle
Checks for engine
Synchronization
Differential Lock ECU control of the
Driver turf solenoid
Time the engine has
Engine Runtime been running since
Since Key On the key was last
Total amount of
Engine Runtime Total
engine run time
Engine Temperature Coolant temperature
at the ECT sensor
VALUE
Active
AWD coil
Inactive
Active
Inactive
28–30 InHg
19–21 InHg
pressure
0
11.8 to 12.8V
12.8 to 14.5V
the ECU
Active
Inactive
pushed
Yes
No
sensor
Active
Inactive
Yes
No
Yes
misfire
No
Active
Inactive
0 minutes to ∞
cycled on
0 minutes to ∞
70° F (21° C)
195° to 210° F (92°
to 99° C)
9925723 R01 - 2015 RZR 900 Service Manual
© Copyright 2014 Polaris Industries Inc.
FUEL SYSTEM
VALUE DESCRIPTION
ECU is grounding the AWD coil
ECU is not grounding the AWD coil
ECU receiving a signal that the AWD switch is in
an AWD mode
ECU receiving a signal that the AWD switch is in
2WD or Turf mode.
Unit is being used at an elevation around sea-
level
Unit is being used at an elevation around 10,000
ft
Default value to indicate an open circuit. Check
for bad connection, broken wire, or faulty sensor.
typical key on voltage
typical engine running voltage
Brake pedal is being pushed
Brake pedal released, open circuit, or faulty
switch
Camshaft is turning
No signal from camshaft sensor / engine not
running
ECU is grounding the cooling fan relay. Fan
should be running
ECU is not grounding the fan relay
ECU is receiving an RPM signal from the CPS.
Crankshaft should be turning
ECU does not see the crankshaft turning
Engine is synchronized. No spark loss
Engine out of synchronization. Intermittent spark
loss
ECU is grounding the diff relay to activate the turf
function. Differential unlocked
ECU is not grounding the diff relay. Differential is
locked.
—
—
Room temperature
Cooling fan running
4
4.31