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Power Window Master Switch Input Test

NOTE: Make sure the ignition switch is OFF before disconnecting the under-dash fuse/relay box connectors.
  1. Before testing the power windows, troubleshoot the multiplex integrated control system using B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).
  2. Turn the ignition switch OFF.
  3. Remove the power window master switch (see REAR POWER WINDOW MOTOR TEST  ).
  4. Disconnect the 22P connector and 14P connector from the power window master switch (A).
    Fig 1: Identifying Power Window Master Switch, 22P Connector And 14P Connector
    G05462752Courtesy of AMERICAN HONDA MOTOR CO., INC.
  5. 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 look OK, go to step 6.
  6. Reconnect the connectors to the switch. Turn the ignition switch ON (II) and perform 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 7.
      WIRE TEST CONDITION REFERENCE

      Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained
      B2 RED/WHT Ignition switch ON (II) Measure the voltage to ground:
      There should be battery voltage.
      • Faulty power window master switch
      • A short to ground in the wire
      B10 LT GRN Under all conditions Measure the voltage to ground:
      There should be less than 0.5 V.
      • Faulty power window master switch
      • An open in the wire
      B3 WHT/RED Under all conditions Measure the voltage to ground:
      There should be battery voltage.
      • Blown No. 7 (7.5 A) fuse in the under-dash fuse/relay box
      • A short to ground in the wire
      • An open in the wire
      B11 GRN/WHT Under all conditions Measure the voltage to ground:
      There should be battery voltage.
      • Blown No. 23 (P/W) (50 A) fuse in the under-hood fuse/relay box
      • Blown No. 27 (30 A) fuse in the under-dash fuse/relay box
      • A short to ground in the wire
      • An open in the wire
      • Faulty under-dash fuse/relay box
      B14 BLK Under all conditions Measure the voltage to ground:
      There should be less than 0.5 V.
      • Poor ground (G501)
      • An open in the wire
      B8 BLU Ignition switch ON (II), and the driver's power window switch moving up or down Measure the voltage between the B8 and BIO terminals:
      There should be 0 V-about 5 V- 0 V-about 5 V repeatedly (a digital voltmeter reads about 2.5 V while the window moves).
      • Blown No. 7 (7.5 A) fuse in the under-dash fuse/relay box
      • Blown No. 27 (30 A) fuse in the under-dash fuse/relay box
      • An open in the wire (RED/WHT, BLU, LT GRN, ORN)
      • A short to ground in the wire
      • Faulty driver's power window motor
      • Faulty power window master switch
      B7 ORN Ignition switch ON (II), and the driver's power window switch moving up or down Measure the voltage between the B7 and B10 terminals:
      There should be 0 V-about 5 V- 0 V-about 5 V repeatedly (a digital voltmeter reads about 2.5 V while the window moves).
      A18 WHT Driver's door key cylinder switch in UNLOCK Measure the voltage to ground:
      There should be less than 1 V.
      • Faulty driver's door key cylinder switch
      • Poor ground (G503, G601)
      • An open in the wire
      Driver's door key cylinder switch in neutral Measure the voltage to ground:
      There should be 5 V or more.
      • A short to ground in the wire
      • Faulty driver's door key cylinder switch
      Driver's door key cylinder switch in LOCK Measure the voltage to ground:
      There should be 5 V or more.
      A19 WHT/RED Driver's door key cylinder switch in LOCK Measure the voltage to ground:
      There should be less than 1 V.
      • Faulty driver's door key cylinder switch
      • Poor ground (G503, G601)
      • An open in the wire
      Driver's door key cylinder switch in neutral Measure the voltage to ground:
      There should be 5 V or more.
      • A short to ground in the wire
      • Faulty driver's door key cylinder switch
      Driver's door key cylinder switch in UNLOCK Measure the voltage to ground:
      There should be 5 V or more.
  7. Disconnect the 22P connector and make these input tests at the connector.
    • If any test indicates a problem, find and correct the cause, then recheck the system.
    • If all the input tests prove OK, the control unit must be faulty; replace the power window master switch.
      WIRE TEST CONDITION REFERENCE

      Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained
      B9 WHT/GRN Connect B9 terminal to ground. Measure the voltage at under-dash fuse/relay box No. 24 (20 A) fuse:
      There should be battery voltage.
      • Blown No. 23 (P/W) (50 A) fuse in the under-hood fuse/relay box.
      • Faulty power window relay
      • Faulty under-dash fuse/relay box
      • A short to ground in the wire
      • An open in the wire
      B12 RED/YEL Connect the B11 and B13 terminals with a jumper wire, and connect B12 terminal to body ground. Check the driver's power window motor operation:
      The window should go up.
      • Blown No. 27 (30 A) fuse in the under-dash fuse/relay box
      • A short to ground in the wire
      • An open in the wire
      • Faulty driver's power window motor
      B13 RED/BLK Connect the B11 and B12 terminals with a jumper wire, and connect B13 terminal to body ground. Check for driver's power window motor operation:
      The window should go down.
      A8 BRN/WHT Connect the B11 and A8 terminals with a jumper wire and connect B9 to body ground with a jumper wire. Check the left rear power window motor operation: The window should go up.
      • Poor ground (G503, G601)
      • Blown No. 24 (20 A) fuse in the under-dash fuse/relay box
      • A short to ground in the wire
      • An open in the wire
      • Faulty power window relay
      • Faulty left rear power window switch
      • Faulty left rear power window motor
      A9 BRN Connect the B11 and A9 terminals with a jumper wire and connect B9 to body ground with a jumper wire. Check the left rear power window motor operation: The window should go down.
      A20 BLU/ORN Connect the B11 and A20 terminals with a jumper wire and connect B9 to body ground with a jumper wire. Check the right rear power window motor operation: The window should go up.
      • Poor ground (G602)
      • Blown No. 25 (20 A) fuse in the under-dash fuse/relay box
      • A short to ground in the wire
      • An open in the wire
      • Faulty power window relay
      • Faulty right rear power window switch
      • Faulty right rear power window motor
      A21 BRN/YEL Connect the B11 and A21 terminals with a jumper wire and connect B9 to body ground with a jumper wire. Check the right rear power window motor operation:
      The window should go down.
      B1 GRN/WHT Under all conditions Check for continuity between the B1 terminal and under-dash fuse/relay box connector P terminal No. 12: There should be continuity.
      • Faulty under-dash fuse/relay box
      • An open in the wire
      B4 LT GRN/BLK Front passenger's power window switch connector and door multiplex control unit connector B (14P) disconnected. Check for continuity between the B4 terminal and front passenger's power window switch connector terminal No. 4:
      There should be continuity.      		 An open in the wire
      Check for continuity between the B4 terminal and body ground:
      There should be no continuity.      		 A short to ground in the wire
  8. Reset the power window control unit (see RESETTING THE POWER WINDOW CONTROL UNIT  ).
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