4.56
500 EFI FUEL SYSTEM
9923412 - 2012 Sportsman 400/500 and EFI Tractor Service Manual
© Copyright 2011 Polaris Sales Inc.
EFI DIAGNOSTICS USING ‘BLINK
CODES’
Blink Codes - Operation
To enable the blink codes, turn the ignition from “OFF”
to “ON” 3 times, leaving it 'on' the 3rd time, within 5
seconds.
Any “blink codes” that are stored in the ECU will display,
one at a time, in numerical order. The word ‘WAIT’ will
appear on the LCD display and the Malfunction Indicator
Light (MIL) or Check Engine light will begin to flash.
Read
and record the number of flashes of the MIL light. A code
‘12’ indicates the beginning of the diagnostic sequence. A
code ‘61’ will flash after all codes have been transmitted.
NOTE: To clear codes manually, disconnect the
positive battery lead for 20 seconds.
Table 4-3: DIAGNOSTIC “BLINK CODES” CHART
BLINK NAME MIL LIGHT
21 Loss of Synchronization Yes
22 TPS Circuit: Sensor Low Yes
22 TPS Circuit: Sensor High Yes
25 Transmission Input - Invalid Gear Yes
26 Vehicle Speed Sensor - Implausible Yes
31 System Voltage Low Yes
31 System Voltage High Yes
41 Air Temp Sensor (IAT): Low Voltage Yes
41 Air Temp Sensor (IAT): High Voltage Yes
42 Engine Temperature Sensor Circuit (ECT): Low Voltage Yes
42 Engine Temperature Sensor Circuit (ECT): High Voltage Yes
44 CPS Circuit Fault Yes
45 Barometric Pressure Sensor: MAP Circuit Low Input Yes
46 Barometric Pressure Sensor: MAP Circuit High Input Yes
47 IAC: Open Load Yes
47 IAC: Short to Ground Yes
51 Injector 1: Open Load / Short Circuit to Ground Yes
51 Injector 1: Short Circuit to Battery Yes
55 Diagnostic Lamp: Open Load Yes
55 Diagnostic Lamp: Short Circuit to Ground Yes
55 Diagnostic Lamp: Short Circuit To Battery Yes
56 Fuel Pump: Open Load / Short Circuit to Ground Yes
56 Fuel Pump: Short Circuit to Battery Yes
61 END SEQUENCE --
Malfunction Indicator Light (MIL) Diagnostic Example
Sequence Begin
Trouble Code
Trouble Code
Trouble Code
Sequence End
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