Polaris A07MH46AA Offroad Vehicle User Manual


 
10.24
ELECTRICAL
ACTIVE DESCENT CONTROL (ADC)
COIL
Operation Overview
AWD switch must be ‘ON’.
PDM pin ‘M’ on SSCB #1 controls the power to the
ADC hub coil for operation.
PDM pin ‘C’ on SSCB #1 senses the gear signal
indicating the transmission is engaged and is not in Park
or Neutral.
PDM pin ‘K’ on SSCB #2 senses the speed sensor
signal for determining if vehicle speed is below 15
Mph.
ECU pin #21 sends a signal to PDM pin ‘D’ on SSCB
#1 to determine the TPS position and will cancel ADC
operation if TPS moves off ‘idle’ position.
System must be grounded to operate.
Diagnosing System Failures
Verify the AWD switch is functional.
Verify the ADC hub coil is functional. Test the ADC
hub coil using an ohm meter.
Verify the TPS is functioning correctly. Test using
Digital Wrench Diagnostic Software. (Dealer Only)
Verify the wiring harness, wiring, connectors,
connector pins, grounds and PDM / ECU pin locations
are undamaged, clean and connect properly.
Verify continuity of wire connections with a known
good volt/ohm meter.
IMPORTANT: Verify all wires and wiring connections
have been tested properly with a known good volt/
ohm meter before suspecting a component failure.
80% of all electrical issues are caused by bad/failed
connections and grounds.
NOTE: Refer to the ADC subsystem diagram located
in ‘Wire Diagrams’ at the end of this chapter.
ALL WHEEL DRIVE (AWD) COIL
Operation Overview
AWD switch must be ‘ON’. 12Vdc power is present at
the ADC hub coil.
The instrument cluster senses grounding at pin #16.
AWD icon should turn on at the instrument cluster.
System must be grounded to operate.
Diagnosing System Failures
Verify the AWD switch is functional.
Verify the AWD hub coil is functional. Test the AWD
hub coil using an ohm meter.
Verify the wiring harness, wiring, connectors,
connector pins and grounds are undamaged, clean and
connect properly.
Verify continuity of wire connections with a known
good volt/ohm meter.
IMPORTANT: Verify all wires and wiring connections
have been tested properly with a known good volt/
ohm meter before suspecting a component failure.
80% of all electrical issues are caused by bad/failed
connections and grounds.
ADC Hub Coil Resistance:
12 ± 5%
AWD Hub Coil Resistance:
24 ± 5%