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Honda Pilot Owners & Service Manuals

Honda Pilot: Front Passenger's Power Window Motor Test

Honda Pilot 2016-2022 (YF5/YF6) Service Manual / Parts Test Info / Front Passenger's Power Window Motor Test

Test

Motor Test

1. Front Passenger's Door Panel - Remove

2. Front Passenger's Power Window Motor - Test

Honda Pilot. Parts Test Info

  1. Connect the connector (A), then install the door panel as needed.
  2. Test the motor in each direction by connecting 12 volt battery power and ground to the connector (B) according to the table. When the motor stops running, disconnect 12 volt battery power immediately
  • If the motor does not run or fails to run smoothly, remove the front passenger's door regulator, then go to step 3.
  • If the motor runs smoothly, go to the Hall IC Unit (Pulser) Test.

Honda Pilot. Parts Test Info

  1. Test the front passenger's power window motor (A) by connecting 12 volt battery power and ground according to the table. When the motor stops running, disconnect 12 volt battery power immediately.
  2. If the motor does not run or fails to run smoothly, the front passenger's power window motor is faulty; replace the front passenger's power window motor.

    If the motor runs smoothly, troubleshoot the front passenger's power window motor circuit.

Hall IC Unit (Pulser) Test

3. Hall IC Unit (Pulser) - Test

Honda Pilot. Parts Test Info

  1. Remove the front passenger's power window switch.
  2. Connect the connector (A).
  3. Turn the vehicle to the ON mode.
  4. Do the front passenger's power window switch input test terminals No. 21, No. 22, and No. 23.

MTR SVCC circuit

Honda Pilot. Parts Test Info

MTR FLSA and MTR FLSB circuits:

Honda Pilot. Parts Test Info

  • If the voltage is as specified, replace the front passenger's power window switch (B).
  • If the voltage is not specified, the Hall IC Unit (Pulser) is faulty; replace the front passenger's power window motor.

4. All Removed Parts - Install

  1. Install the parts in the reverse order of removal.

5. Power Window Control Unit - Reset

Front Passenger's Power Window Switch Input Test

NOTE:

  • Before testing, make sure the No. C4 (20 A) fuse in the under-dash fuse/relay box is OK.
  • Before testing, check for DTCs. If any DTCs are indicated, troubleshoot those DTCs first.

1. Turn the vehicle to the OFF (LOCK) mode.

2. Disconnect the front passenger's power window switch 24P connector.

Honda Pilot. Parts Test Info

3. Inspect the connector and socket terminals to be sure they are all making good contact:

  • If the terminals are bent, loose, or corroded, repair them as necessary, and recheck the system.
  • If the terminals are OK, go to step 4.

4. With the connector still disconnected, do the following input tests:

  • If any test indicates a problem, find and correct the cause, then recheck the system.
  • If all the input tests prove OK, go to step 5.
Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained
2

-

1

 RED

-

BLU

 Connect terminals No. 2 and No. 14, and terminals No. 1 and No.

9 with jumper wires.

 Check front passenger's power window motor operation: The front passenger's power window should close.
  • Faulty front passenger's power window motor
  • Poor ground (G405)
  • An open or high resistance in the wire
Connect terminals No. 1 and No. 14, and terminals No. 2 and No.

9 with jumper wires.

 Check front passenger's power window motor operation: The front passenger's power window should open.
24 GRY Disconnect these connectors:
  • Power window master switch 37P connector
  • Moonroof motor-control unit 14P connector
 Check for continuity between terminal No. 24 and power window master switch 37P connector terminal No. 36: There should be continuity. An open in the LIN(WINDOW) wire
Check for continuity between terminal No. 34 and moonroof motor-control unit 14P connector terminal No. 12: There should be continuity. An open in the LIN(WINDOW) wire
Check for continuity to ground: There should be no continuity. A short to ground in the LIN(P/W) wire

5. Reconnect the connector, and do the following input tests:

  • If any test indicates a problem, find and correct the cause, then recheck the system.
  • If all the input tests prove OK, replace the front passenger's power window switch.

NOTE: After replacing the front passenger's power window switch, do the resetting the power window control unit.

Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained
14 GRN Under all conditions Measure the voltage to ground: There should be battery voltage.
  • Blown No. C4 (20 A) fuse in the under-dash fuse/relay box
  • An open or high resistance in the wire
9 BLK In all power modes Measure the voltage to ground: There should be less than 0.2 V.
  • Poor ground (G405)
  • An open or high resistance in the ground wire
21 GRN Vehicle ON mode Measure the voltage to ground: There should be battery voltage.
  • Faulty front passenger's power window motor
  • A short to ground in the wire
23 BLU Vehicle ON mode, and front passenger's power window moving up or down Measure the voltage between terminals No. 23 and No. 10: An analog meter should alternate between 0 V and 5 V (a digital voltmeter should read about 2.5 V while the window moves).
  • Faulty front passenger's power window motor
  • An open or high resistance in the wire
  • A short to ground in the wire
22 TAN Vehicle ON mode, and front passenger's power window moving up or down Measure the voltage between terminals No. 22 and No. 10: An analog meter should alternate between 0 V and 5 V (a digital voltmeter should read about 2.5 V while the window moves).
  • Faulty front passenger's power window motor
  • An open or high resistance in the wire
  • A short to ground in the wire

Fuel and Emissions Systems Symptom Troubleshooting Engine stalls Diagnostic interview

Engine stalls－Diagnostic interview

Honda Pilot. Parts Test Info

Engine stalls condition－Possible cause pattern chart from diagnostic interview

  Conditions when the engine stalls Possible causes
Pattern 1 Accessories/modifications ''Hard to start engine'' or ''engine stall'' sometimes occurs due to a fault in the ignition system, intake duct, intake manifold, or exhaust system.

(Intermittent failure may occur due to modification)
Pattern 2 Booming noise, vibration occurs when deceleration, stopping, engine stalls The following intermittent failures may exist.
  • Intermittent failure of PGM-FI main relay 2
  • Faulty fuel supply (parameter ST FUEL TRIM)
  • Delay of EGR function (parameter EGR) (only vehicles with EGR)
  • Delay of VTEC, VTC system function (parameter VTEC) (only vehicles with VTEC or VTC)
  • Delay of lock up operation (parameter SLIP RATIO OF TORQ OR STARTCLUTCH) (AT, CVT vehicles)
Pattern 3 Engine stalls without vibrations as if turning off the ignition switch The following intermittent failures may exist.
  • Intermittent failure of ignition coil relay
  • Intermittent failure of PGM-FI main relay 1
  • Intermittent failure of PGM-FI subrelay
  • Intermittent failure of ETCS control relay

Fuel and Emissions Systems Symptom Troubleshooting Hard to start engine Diagnostic interview

Hard to start engine－Diagnostic interview

Honda Pilot. Parts Test Info

Hard-to start condition－Possible cause pattern chart from diagnostic interview

  Conditions when the engine stalls Possible causes
Pattern 1
  • When in warm climate
  • Tends to occur about 3 hours after stopping engine
 Check for the EVAP canister purge valve.
Pattern 2 Weather when occurred: Windy When wind is blowing into the exhaust system, the exhaust gas can blow back into the combustion chamber and/or intake manifold, causing long crank times.
Pattern 3
  • Weather when occurred: Cold
  • Fuel filled two months before occurrence
  • If summer fuel is used during cold weather, long crank times may occur.
  • When using fuel that is more than a couple months old (stale fuel), the symptom may disappear with fresh fuel.
Pattern 4
  • Use of non-specified fuel
  • Ethanol mixed, use of additive
  • When ethanol fuel or fuel other than specified is mixed, engine stalling may occur.
  • Poor fuel quality may cause a hard-to-start condition.
Pattern 5
  • Immediately crank after turning the vehicle to the ON mode
  • Starter motor spins weaker than usual
  • There may be a delay until the fuel pump can generate sufficient fuel pressure. Check fuel pressure when starting.
  • When the battery is weak, it takes a long time until the fuel pump boosts fuel pressure to the prescribed level, causing slow start in some cases.
Pattern 6
  • Vehicle parked on an uphill or downhill slope
  • When fuel level is low
 When the vehicle is parked on an uphill or downhill slope, and the fuel level is low, the fuel pump cannot pickup and pressurize the fuel properly, causing a hard-tostart condition.
Pattern 7
  • Check for modification in ignition system, intake duct, intake manifold, exhaust system
  • Inspect amount of oil/fluid/gas (engine oil, ATF, A/C refrigerant)
 Hard-to-start engine or engine stall may occur due to modified ignition system, intake duct, intake manifold, exhaust system, use of non-specified engine oil or ATF, or excessive amount of engine oil or ATF (temporary failure may occur due to modification).
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Honda Pilot 2016-2022 (YF5/YF6) Service Manual

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