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Power Tilt/Telescopic Steering Control Unit Input Test Acura MDX II

Driver Position Memory System (dpms) 14 illustrations ~937 words

Power Tilt/Telescopic Steering Control Unit Input Test

Note. Before testing the power till/telescopic steering control unit, troubleshoot the multiplex integrated control unit first, using B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 98

Scheme 98: Power Tilt/Telescopic Steering Control Unit Input Test
Scheme 98: Power Tilt/Telescopic Steering Control Unit Input Test
  1. Turn the ignition switch to LOCK (0).
  2. Remove the steering column cover (see «COLUMN COVER REMOVAL/INSTALLATION»(/acura/mdx/ii-2006-2010/remont/exteriorinterior-trim/#dashboard__column-cover-removalinstallation) ).
  3. Disconnected the 16P connector (A) and 8P connector (B) from the power till/telescopic steering control unit (C).
  4. 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 5.
  5. Reconnect the connectors to the power tilt/telescopic steering control unit, and make these input tests at the connectors. 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 it. WIRE CAVITY CHART Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained A8 BLK Under all conditions Measure the voltage to ground: There should be less than 0.5 V. Poor ground (G503, G506) An open in the wire B1 A1 WHT Under all conditions Measure the voltage to ground: There should be battery voltage. No. 4 (40 A) fuse in the main under-hood fuse box Blown No. 7 (10 A) fuse in the under-dash fuse/relay box An open in the wire A9 YEL Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. Blown No. 21 (7.5 A) fuse in the under-dash fuse/relay box An open in the wire B3 WHT Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. 2 (OP2) (40 A) fuse in the main under-hood fuse box Blown No. 28 (20 A) fuse in the under-dash fuse/relay box An open in the wire B5 GRN Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. 3 (P/W) (50 A) fuse in the main under-hood fuse box Blown No. 15 (20 A) fuse in the under-dash fuse/relay box An open in the wire

Scheme 99

Scheme 99: Driving Position Memory Switch Test/Replacement
Scheme 99: Driving Position Memory Switch Test/Replacement

Scheme 100

Scheme 100
Scheme 100
  1. Remove the driver's door panel (see «FRONT DOOR PANEL REMOVAL/INSTALLATION»(/acura/mdx/ii-2006-2010/remont/exterior-body-panels/#doors__front-door-panel-removalinstallation) ).
  2. Disconnect the 10P connector (A) from the driving position memory switch (B).
  3. Remove the two screws, then remove the switch from the door panel.
  4. Check for continuity between the terminals in each switch position according to the table.
  5. If the continuity is not as specified, replace the switch.

Scheme 101

Scheme 101: Power Seat Adjustment Switch Test/Replacement
Scheme 101: Power Seat Adjustment Switch Test/Replacement

Scheme 102

Scheme 102
Scheme 102
  1. Remove the power seat adjustment switch knobs (A) and recline cover from the driver's power seat (see «FRONT SEAT DISASSEMBLY/REASSEMBLY»(/acura/mdx/ii-2006-2010/remont/seats/#seats__front-seat-disassemblyreassembly) ), then remove the two screws and the power seat adjustment switch (B).
  2. Disconnect the 12P connector from the power seat adjustment switch.
  3. Reinstall the adjustment switch knobs to the switch.
  4. Check for continuity between the terminals in each switch position according to the table.
  5. If the continuity is not as specified, replace the switch.

Scheme 103

Scheme 103: Slide motor, Front up-down motor, Rear up-down motor
Scheme 103: Slide motor, Front up-down motor, Rear up-down motor

Scheme 104

Scheme 104
Scheme 104
  1. Remove the driver's seat (see «FRONT SEAT REMOVAL/INSTALLATION»(/acura/mdx/ii-2006-2010/remont/seats/#seats__front-seat-removalinstallation) ).
  2. Disconnect the 2P connector from each power seat motor. NOTE: All connectors are terminal side of male terminals.
  3. Test each motor by connecting power and ground according to the table. When the motor stops running, disconnect battery power immediately.
  4. If the motor does not run or fails to run smoothly, replace the seat linkage assembly (see «FRONT SEAT LINKAGE DISASSEMBLY/REASSEMBLY»(/acura/mdx/ii-2006-2010/remont/seats/#seats__front-seat-linkage-disassemblyreassembly) ). NOTE: The slide and up-down motors are not available separately because of the part of seat linkage, refer to the seat linkage disassembly/ reassembly (see «FRONT SEAT LINKAGE DISASSEMBLY/REASSEMBLY»(/acura/mdx/ii-2006-2010/remont/seats/#seats__front-seat-linkage-disassemblyreassembly) ).

Scheme 105

Scheme 105: Recline motor
Scheme 105: Recline motor

Scheme 106

Scheme 106
Scheme 106
  1. Remove the driver's seat (see «FRONT SEAT REMOVAL/INSTALLATION»(/acura/mdx/ii-2006-2010/remont/seats/#seats__front-seat-removalinstallation) ).
  2. Disconnect the power seat wire harness 8P connector from the recline motor/lumbar support motor subharness.
  3. Test motor by connecting power and ground according to the table. When the motor stops running, disconnect battery power immediately.
  4. If the motor does not run or fails to run smoothly, check for an open in the wire between the 8P connector and recline motor. If the harness is OK, replace the recline motor (see «FRONT SEAT RECLINE MOTOR REPLACEMENT»(/acura/mdx/ii-2006-2010/remont/seats/#seats__front-seat-recline-motor-replacement) ).

Scheme 107

Scheme 107: Power Tilt/Telescopic Steering Switch Test/Replacement
Scheme 107: Power Tilt/Telescopic Steering Switch Test/Replacement

Scheme 108

Scheme 108
Scheme 108
  1. Remove the steering column covers (see «COLUMN COVER REMOVAL/INSTALLATION»(/acura/mdx/ii-2006-2010/remont/exteriorinterior-trim/#dashboard__column-cover-removalinstallation) ).
  2. Disconnect the 13P connector (A) from the power tilt/telescopic steering switch (B).
  3. Check for continuity between the terminals in each switch position according to the table.
  4. If the continuity is not as specified, replace the switch.

Scheme 109

Scheme 109: Power Tilt/Telescopic Steering Motor Test
Scheme 109: Power Tilt/Telescopic Steering Motor Test

Scheme 110

Scheme 110
Scheme 110

Scheme 111

Scheme 111
Scheme 111
  1. Remove the steering column covers (see «COLUMN COVER REMOVAL/INSTALLATION»(/acura/mdx/ii-2006-2010/remont/exteriorinterior-trim/#dashboard__column-cover-removalinstallation) ).
  2. Disconnect the 6P connector and 8P connector from the power tilt/telescopic steering motors.
  3. Check each motor by connecting power and ground according to the table. When the motor stops running, disconnect battery power immediately. TILT MOTOR: TELESCOPIC MOTOR
  4. If the motor does not run or fails to run smoothly; replace the steering column assembly (see «STEERING COLUMN REMOVAL AND INSTALLATION»(/acura/mdx/ii-2006-2010/remont/manual-power-steering/#power-steering-system__steering-column-removal-and-installation) ).