Control Unit Input Test: Windshield
WARNING: This page is about a different car, the 2008 Honda Pilot, 2007 Honda Pilot, and 2006 Honda Pilot. However, it is still accessible from the selected car via links, so may be relevant.
- Before testing the wiper/washer control functions, troubleshoot the multiplex control system (see TROUBLESHOOTING ).
- Remove the driver's multiplex control unit from the driver's under-dash fuse/relay box, and disconnect its connector.
- Inspect all connector and socket terminals to be sure they are 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 4.
- With the driver's multiplex control unit still disconnected, make these input tests at the connector and driver's under-dash fuse/relay box sockets.
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If all the input tests prove OK, driver's multiplex control unit must be faulty; replace it.TERMINALS REFERENCE TABLE
Cavity Wire Test condition Test: Desired result Possible cause if result is not obtained B11(1) BLK Under all conditions Check for voltage to ground:
There should be less than 1 V.- Poor ground (G501)
- An open in the wire
A24 Fuse/relay box socket Ignition switch ON (II) Check for voltage to ground:
There should be battery voltage.- Blown No. 9 (10 A) fuse in the driver's under-dash fuse/relay box
- Faulty driver's under-dash fuse/relay box
A3 Shift lever in P position Check for voltage to ground:
There should be less than 1 V.- Faulty transmission range switch
- Poor ground (G101)
- An open in the wire
A8 Brake pedal pressed Check for voltage to ground: There should be battery voltage. - Blown No. 47 (20 A) fuse in the under-hood fuse/relay box
- Faulty brake pedal position switch
- An open in the wire
B14 BLU/WHT Under all conditions Check for voltage between the B14 terminal and No. 9 terminal of the PCM 32P connector A:
There should be less than 1 V.An open in the wire B15 GRN/RED [GRN/PUR] Parking brake pedal pressed Check for continuity to ground: There should be continuity. - Faulty parking brake switch
- An open in the wire
B9 GRN/YEL Intermittent dwell time control ring turned Check resistance between the terminals:
It should vary from 0 to approx. 30 k ohms as the ring is turned.- Faulty intermittent dwell time controller
- An open in the wire
B10 GRN/WHT A9 Fuse/relay box socket Ignition switch ON (II) and wiper switch at INT Check for voltage to ground:
There should be battery voltage.- Blown No. 12 (30 A) fuse in the driver's under-dash fuse/relay box
- Faulty wiper switch
- Faulty driver's under-dash fuse/relay box
- An open in the wire
A11 Ignition switch ON (II) Check for voltage to ground:
There should be battery voltage.- Blown No. 12 (30 A) fuse in the driver's under-dash fuse/relay box
- Faulty windshield wiper intermittent wiper relay
- Faulty driver's under-dash fuse/relay box
- An open in the wire
A21 Ignition switch ON (II) and washer switch ON Check for voltage to ground:
There should be battery voltage.- Blown No. 12 (30 A) fuse in the driver's under-dash fuse/relay box
- Faulty washer switch
- Faulty driver's under-dash fuse/relay box
- An open in the wire
A23 Ignition switch ON (II) and wiper switch in the PARK position Check for voltage to ground:
There should be battery voltage.- Blown No. 12 (30 A) fuse in the driver's under-dash fuse/relay box
- Faulty wiper motor
- Faulty driver's under-dash fuse/relay box
- An open in the wire
(1) Make this test at driver's multiplex control unit connector B with all connectors reconnected
Driver's Multiplex Control Unit