Driver Position Memory System (Dpms): Diagnosis Honda Odyssey IV

Canceling the DTC Indication

1. Turn the ignition switch to LOCK (0) or
2. Press the MEMO button, or position button 1, or position button 2, or
3. Press one of the seat adjustment switches.

Erasing the DTC from Memory

Turn the ignition switch to LOCK (0). Raise the front and rear of the driver's seat to the highest position. Disconnect the gray seat harness connectors C901 (12P) and C902 (10P) from the seat floor harness. Wait one minute and then plug them back in.

DTC Index (Without HDS)

DTC INDEX

Scheme 4

Scheme 5

Scheme 6

Scheme 7

Scheme 8

System Input Test and Function Test

1. Connect the HDS to the DLC.
2. Turn the ignition switch to ON (II).
3. From the BODY ELECTRICAL SYSTEM SELECT menu, select POWER SEAT/POWER MIRROR, then DTCs. If DTCs are found, troubleshoot the DTCs using B-CAN System Diagnostic Test Mode A (see «TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A»(ref-294731-S03650631412008081300000) ). If no DTCs are found, go to step 4.
4. Exit the DTC mode and select DATA LIST from the POWER SEAT/POWER MIRROR TEST MODE menu.
5. Test each input and monitor each output under the condition listed below. If the data list indication is correct, continue to the next switch. If all switches are OK, go to step 6. If the data list indication is not correct, perform the appropriate test at the control unit and terminal indicated in the table. Voltage drop tests should be performed with the ignition switch to ON (II) and all connectors connected and the meter negative test lead attached to a good body ground. Continuity tests should be performed with the ignition switch turned to LOCK (0) and indicated terminals disconnected. DATA LIST Data List Input/Command Condition: Data List Indication Control Unit/Terminal Number/ Test (If applicable) Possible cause if desired result is not obtained Slide Switch Forward Slide switch forward: ON Switch released: OFF Power seat control unit/A7, A1 (RED/WHT) Slide switch released: 5 V or more Slide switch forward: 0 V Faulty switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(ref-294763-S38181234512008081300000) ) An open in the wire A short to ground in the wire Faulty power seat control unit Slide Switch Backward Slide switch backward: ON Switch released: OFF Power seat control unit/A27, A1 (ORN) Slide switch released: 5 V or more Slide switch backward: 0 V Faulty switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(ref-294763-S38181234512008081300000) ) An open in the wire A short to ground in the wire Faulty power seat control unit Recline Switch Forward Recline switch forward: ON Switch released: OFF Power seat control unit/A6, A1 (PNK) Recline switch released: 5 V or more Recline switch forward: 0 V Faulty switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(ref-294763-S38181234512008081300000) ) An open in the wire A short to ground in the wire Faulty power seat control unit Recline Switch Backward Recline switch backward: ON Switch open: OFF Power seat control unit/A25, A1 (PUR) Recline switch released: 5 V or more Recline switch backward: 0 V Faulty switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(ref-294763-S38181234512008081300000) ) An open in the wire A short to ground in the wire Faulty power seat control unit Front Up-Down Switch Up Front up-down switch up: ON Switch released: OFF Power seat control unit/A5, A1 (LT GRN) Front up-down switch released: 5 V or more Front up-down switch up: 0 V Faulty switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(ref-294763-S38181234512008081300000) ) An open in the wire A short to ground in the wire Faulty power seat control unit Front Up-Down Switch Down Front up-down switch down: ON Switch released: OFF Power seat control unit/A4, A1 (RED/BLK) Front up-down switch released: 5 V or more Front up-down switch down: 0 V Faulty switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(ref-294763-S38181234512008081300000) ) An open in the wire A short to ground in the wire Faulty power seat control unit Rear Up-down switch Up Rear up-down switch up: ON Switch released: OFF Power seat control unit/A23, A1 (GRN/ORN) Rear up-down switch released: 5 V or more Rear up-down switch up: 0 V Faulty switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(ref-294763-S38181234512008081300000) ) An open in the wire A short to ground in the wire Faulty power seat control unit Rear Up-down Switch Down Rear up-down switch down: ON Switch released: OFF Power seat control unit/A3, A1 (GRY) Rear up-down switch released: 5 V or more Rear up-down switch down: 0 V Faulty switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(ref-294763-S38181234512008081300000) ) An open in the wire A short to ground in the wire Faulty power seat control unit A/T Gear Position Switch (P) Transmission range switch P position: ON Any other position than P: OFF Power seat control unit/A31 (BLU/BLK) Transmission range switch P: 0V Faulty switch An open in the wire Faulty power seat control unit Ignition switch for power seat control Ignition switch ON (II): ON Ignition switch off: OFF Power seat control unit/A35 (YEL) Ignition switch ON (II): 12 V Blown No. 21 (7.5 A) fuse in the driver's under-dash fuse/relay box An open in the wire Faulty power seat control unit Slide Position Sensor Seat moving forward or rearward: ON Seat not moving: OFF Power seat control unit/A11 (YEL/GRN) Pulses as seat moves, 2.5 V average Faulty sensor An open in the wire Faulty power seat control unit Front Up-Down Position Sensor Seat front moving up/ down: ON Seat not moving: OFF Power seat control unit/A12 (YEL/BLK) Pulses as seat moves, 2.5 V average Faulty sensor An open in the wire Faulty power seat control unit Recline Position Sensor Seat back moving forward or rearward: ON Seat not moving: OFF Power seat control unit/A10 (BLU/WHT) Pulses as seat moves, 2.5 V average Faulty sensor An open in the wire Faulty power seat control unit Rear Up-down Position Sensor Seat rear moving up/ down: ON Seat not moving: OFF Power seat control unit/A13 (GRN/WHT) Pulses as seat moves, 2.5 V average Faulty sensor An open in the wire Faulty power seat control unit Mirror Select Switch LEFT ('08-10 Touring models) Mirror select switch in LEFT position: ON Select switch in CENTER or RIGHT position: OFF Power mirror control unit/2 (RED) Mirror Select switch LEFT: 0 V; CENTER or RIGHT: 5 V Faulty switch An open in the wire A short to ground in the wire Faulty power mirror control unit Mirror Select Switch RIGHT ('08-10 Touring models) Mirror select switch in RIGHT position: ON Select switch in CENTER or LEFT position: OFF Power mirror control unit/8 (BLU/WHT) Mirror Select switch RIGHT: 0 V; CENTER or LEFT: 5 V Faulty switch An open in the wire A short to ground in the wire Faulty power mirror control unit Mirror Select Switch CENTER ('08-10 Touring models) Mirror select switch in CENTER position: ON Select switch in RIGHT or LEFT position: OFF Power mirror control unit/2 (RED), 8 (BLU/WHT) Mirror Select switch CENTER: 5 V each RIGHT or [LEFT] : 2(5V) [2(0V)] Faulty switch An open in the wire A short to ground in the wire Faulty power mirror control unit Mirror Left Switch ('08-10 Touring models) Mirror select switch in LEFT, then RIGHT Mirror left switch pressed: ON Mirror switch released: OFF Power mirror control unit/10 (BLU/BLK), 1 (WHT/RED), 9 (GRN/WHT), 2 (RED), 8 (BLU/ WHT) Mirror Select switch LEFT, left switch pressed: 10 (12 V), 1 (12V),9(5V),2(0V),8(5V) Mirror Select switch RIGHT, left switch pressed: 10 (12 V), 1 (5 V), 9(12V),2(5V),8(0V) Faulty switch An open in the wire A short to ground in the wire Faulty power mirror control unit Mirror Right Switch ('08-10 Touring models) Mirror select switch in LEFT, then RIGHT Mirror right switch pressed: ON Mirror switch released: OFF Power mirror control unit/10 (BLU/BLK), 1 (WHT/RED), 9 (GRN/WHT), 2 (RED), 8 (BLU/ WHT) Mirror Select switch LEFT, right switch pressed: 10 (0 V), 1 (0 V), 9 (5 V), 2 (12 V), 8 (5 V) Mirror Select switch RIGHT, right switch pressed: 10 (0 V), 1 (5V),9(0V), 2 (5 V), 8 (12 V) Faulty switch An open in the wire A short to ground in the wire Faulty power mirror control unit Mirror Up Switch ('08-10 Touring models) Mirror select switch in LEFT, then RIGHT Mirror up switch pressed: ON Mirror switch released: OFF Power mirror control unit/10 (BLU/BLK), 1 (WHT/RED), 9 (GRN/WHT), 2 (RED), 8 (BLU/ WHT) Mirror Select switch LEFT, up switch pressed: 10 (12 V), 1 (0 V), 9 (5 V), 2 (0 V), 8 (5 V) Mirror Select switch RIGHT, up switch pressed: 10(12 V), 1 (5 V), 9 <0 V), 2 (5 V), 8 (0 V) Faulty switch An open in the wire A short to ground in the wire Faulty power mirror control unit Mirror Down Switch ('08-10 Touring models) Mirror select switch in LEFT, then RIGHT Mirror down switch pressed: ON Mirror switch released: OFF Power mirror control unit/10 (BLU/BLK), 1 (WHT/RED), 9 (GRN/WHT), 2 (RED), 8 (BLU/ WHT) Mirror Select switch LEFT, down switch pressed: 10 (0 V), 1 (12 V), 9 (5 V), 2 (12 V), 8 (5 V) Mirror Select switch RIGHT, down switch pressed: 10 (0 V), 1 (5 V), 9 (12 V), 2 (5 V), 8 (12 V) Faulty switch An open in the wire A short to ground in the wire Faulty power mirror control unit Ignition Switch for Power Mirror Control ('08-10 Touring models) Ignition switch on (II): ON Ignition switch off: OFF Power mirror control unit/11 (YEL) Ignition switch on: Battery Voltage Blown No. 21 (7.5 A) fuse in the under-dash fuse/relay box An open in the wire A short to ground in the wire Faulty power mirror control unit Seat MEMO Switch Seat MEMO switch pressed: ON Switch released: OFF Power seat control unit/A20 (WHT) Seat MEMO switch pressed: 0 V; Switch released: 5 V or more Faulty switch An open in the wire Faulty power seat control unit Driver 1 position Switch Driver position 1 switch pressed: ON Switch released: OFF Power seat control unit/A18 (BLU) Driver position 1 switch pressed: 0 V; Switch released: 5 V or more Faulty switch An open in the wire Faulty power seat control unit Driver 2 position Switch Driver position 2 switch pressed: ON Switch released: OFF Power seat control unit/A19 (BLU/YEL) Driver position 2 switch pressed: 0 V; Switch released: 5 V or more Faulty switch An open in the wire Faulty power seat control unit Right Mirror Horizontal Sensor ('08-10 Touring models) Right mirror moves left/right: NORMAL Right mirror stopped: ABNORMAL Power mirror control unit/7 (ORN), 6 (BLU), 20 (PUR) Right mirror moving from full right to full left: 7 (5 V), 6 (0 V), 20 (about 0.5 V to about 4.5 V) Faulty sensor An open in the wire Faulty power mirror control unit Right Mirror Vertical Sensor ('08-10 Touring models) Right mirror moves up/down: NORMAL Right mirror stopped: ABNORMAL Power mirror control unit/7 (ORN), 6 (BLU), 19 (YEL) Right mirror moving from full down to full up: 7 (5 V), 6 (0 V), 19 (about 0.5 V to about 4.5 V) Faulty sensor An open in the wire Faulty power mirror control unit Left Mirror Horizontal Sensor ('08-10 Touring models) Left mirror moves left/right: NORMAL Right mirror stopped: ABNORMAL Power mirror control unit/7 (ORN), 6 (BLU), 4 (WHT) Left mirror moving from full left to full right: 7 (5 V), 6 (0 V), 4 (about 0.5 V to about 4.5 V) Faulty sensor An open in the wire Faulty power mirror control unit Left Mirror Vertical Sensor ('08-10 Touring models) Left mirror moves up/down: NORMAL Right mirror stopped: ABNORMAL Power mirror control unit/7 (ORN),6(BLU),5(GRN) Left mirror moving from full down to full up: 7 (5 V), 6 (0 V), 5 (about 0.5 V to about 4.5 V) Faulty sensor An open in the wire Faulty power mirror control unit Right Mirror Horizontal Motor command ('08-10 Touring models) Right mirror commanded to move left/right: ON Right mirror stopped: OFF Function Test: Go to step 6 N/A Right Mirror Vertical Motor command Right mirror commanded to move up/down: ON Right mirror stopped: OFF Function Test: Go to step 6 N/A Left Mirror Horizontal Motor command Left mirror commanded to move left/right: ON Left mirror stopped: OFF Function Test: Go to step 6 N/A Left Mirror Vertical Motor command Left mirror commanded to move up/down: ON Left mirror stopped: OFF Function Test: Go to step 6 N/A Driver 1 Position Indicator Driver 1 Position Indicator on: ON Driver 1 Position Indicator off: OFF Function Test: Go to step 6 N/A Driver 2 Position Indicator Driver 2 Position Indicator on: ON Driver 2 Position Indicator off: OFF Function Test: Go to step 6 N/A Slide Motor Command As seat moves forward or rearward: ON Seat not moving: OFF Function Test: Go to step 6 N/A Recline Motor Command As seat back moves forward or rearward: ON Seat not moving: OFF Function Test: Go to step 6 N/A Front Height Motor Command As front of seat moves up or down: ON Seat not moving: OFF Function Test: Go to step 6 N/A Rear Height Motor Command As rear of seat moves up or down: ON Seat not moving: OFF Function Test: Go to step 6 N/A Power Seat Buzzer Command Power seat buzzer commanded on: ON Power seat buzzer commanded off: OFF Function Test: Go to step 6 N/A
6. Exit the DATA LIST and select Function Test.
7. Perform each of the function tests listed in the table below. The appropriate output should occur. If the function operates normally, go to the next function test. If all function tests operate normally, the system is OK. If the function does not operate normally, perform the appropriate test at the control unit and terminal indicated in the table. Voltage drop tests should be performed with the ignition switch to ON (II) and all connectors connected Continuity tests should be perform with the ignition switch turned to LOCK (0) and indicated terminals disconnected tests should be done according to the instructions indicated. If the test indicates that the component operates normally, but the function does not operate with the function test or the normal use of the component, the control unit that operates that function must be faulty; replace it. If the test indicates that the component does not operate normally, check for an open or short in the harnesses between the component and the control unit. If the harness is OK, replace the component.

Power Seat Indicator

POWER SEAT INDICATOR CHART

Power Seat

POWER SEAT CHART

Power Mirror

POWER MIRROR CHART

Power Seat Control Unit Input Test

Note. Before troubleshooting the DPMS, troubleshoot the multiplex integrated control system first using B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 9

1. Turn the ignition switch to LOCK (0).
2. Remove the driver's power seat (see «FRONT SEAT REMOVAL/INSTALLATION»(ref-294739-S12901777412008081300000) ). NOTE: Be careful not to scratch the interior trim.
3. Disconnect the connectors from the power seat control unit (A). NOTE: All connector views are from wire side of female terminals.
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 seat 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 A9 . B4 . B18 BRN Under all conditions Measure the voltage to ground: There should be less than 1 V. Poor ground (G602) An open in the wire A35 YEL Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. Blown No. 21 (7.5 A) fuse in the driver's under-dash fuse/relay box An open in the wire A37 WHT/RED Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. 15 (40 A) fuse in the under-hood fuse/relay box Blown No. 7 (7.5 A) fuse in the driver's under-dash fuse/relay box An open in the wire B1 WHT/RED Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. 20 (40 A) fuse in the under-hood fuse/relay box Blown No. 16 (20 A) fuse in the driver's under-dash fuse/relay box An open in the wire B8 WHT/BLU Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. 20 (40 A) fuse in the under-hood fuse/relay box Blown No. 14 (20 A) fuse in the driver's under-dash fuse/relay box An open in the wire A16 GRN Under all conditions Attach to ground: The driving position memory switch indicator 1 should come on. Blown No. 7 (7.5 A) fuse in the driver's under-dash fuse/relay box Faulty driving position memory switch An open in the wire A17 RED Under all conditions Attach to ground: The driving position memory switch indicator 2 should come on. Blown No. 7 (7.5 A) fuse in the driver's under-dash fuse/relay box Faulty driving position memory switch An open in the wire A18 BLU Press No. 1 button of the driving position memory switch Measure the voltage to ground: There should be less than 1 V. Poor ground (G601) Faulty driving position memory switch An open in the wire A19 BLU/YEL Press No. 2 button of the driving position memory switch Measure the voltage to ground: There should be less than 1 V. Poor ground (G601) Faulty driving position memory switch An open in the wire A20 WHT Press the MEMO button of the driving position memory switch Measure the voltage to ground: There should be less than 1 V. Poor ground (G601) Faulty driving position memory switch An open in the wire A31 BLU/BLK Shift lever in P position Measure the voltage to ground: There should be less than 1 V. Faulty transmission range switch An open in the wire A39 BLK Power mirror control unit connector (24P) and power seat control unit connector A (40P) disconnected Check for continuity between the A39 terminal and the power mirror control unit connector No. 13 terminal: There should be continuity. An open in the wire Check for continuity between the A39 terminal and body ground: There should be no continuity. A short to ground in the wire

Power Mirror Control Unit Input Test

Note. Before troubleshooting the DPMS, troubleshoot the multiplex integrated control system first using B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Scheme 10

1. Turn the ignition switch to LOCK (0).
2. Remove the driver's door panel (see «FRONT DOOR PANEL REMOVAL/INSTALLATION»(ref-294740-S24092112312008081300000) ).
3. Disconnect the 24P connector (A) from the power mirror control unit (B).
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. With the connector still disconnected, 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 it. WIRE CAVITY CHART Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained 22 BLK Under all conditions Check for continuity to ground: There should be continuity. Poor ground(G601) An open in the wire 24 WHT/RED Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. 7 (7.5 A) fuse in the driver's under-dash fuse/relay box A short to ground in the wire An open in the wire 11 YEL Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. Brown No. 21 (7.5 A) fuse in the driver's under-dash fuse/ relay box A short to ground in the wire An open in the wire 13 PUR Power seat control unit connector A (40P) disconnected Check for continuity between the No. 13 terminal and power seat control unit connector A (40P) No. 39 terminal: There should be continuity. An open in the wire Check for continuity between the No. 13 terminal and body ground: There should be no continuity. A short to ground in the wire

Scheme 11

Scheme 12

1. Remove the driver's door panel (see «FRONT DOOR PANEL REMOVAL/INSTALLATION»(ref-294740-S24092112312008081300000) ).
2. Disconnect the 10P connector from the memory switch (A).
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 (Scheme 12).
5. If the continuity is not as specified, replace the illumination bulb (B) or the switch.

Scheme 13

Scheme 14

1. Remove the power seat adjustment switch knobs (A) and recline cover from the driver's power seat (see «FRONT SEAT DISASSEMBLY/REASSEMBLY»(ref-294739-S07177726522008081300000) ), then remove the two screws and the power seat switch.
2. Disconnect the 12P connector from the power seat adjustment switch (B).
3. Reinstall the adjustment switch knobs to the switch.
4. Check for continuity between the terminals in each switch position according to (Scheme 14).
5. If the continuity is not as specified, replace the switch.

Scheme 15

Scheme 16

Scheme 17

Scheme 18

Scheme 19

Scheme 20

1. Remove the driver's seat (see «FRONT SEAT REMOVAL/INSTALLATION»(ref-294739-S12901777412008081300000) ).
2. Disconnect the 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 (Scheme 17), (Scheme 18), (Scheme 19) and (Scheme 20). When the motor stops running, disconnect battery power immediately.
4. If the motor does not run or fails to run smoothly, replace: Slide motor (see «FRONT SEAT LINKAGE DISASSEMBLY/REASSEMBLY - DRIVER'S 8-WAY POWER»(ref-294739-S02684988922008081300000) ) Front up-down motor (see «FRONT SEAT LINKAGE DISASSEMBLY/REASSEMBLY - DRIVER'S 8-WAY POWER»(ref-294739-S02684988922008081300000) ) Rear up-down motor (see «FRONT SEAT LINKAGE DISASSEMBLY/REASSEMBLY - DRIVER'S 8-WAY POWER»(ref-294739-S02684988922008081300000) ) NOTE: For recline motor, check for an open in the recline motor subharness. If the harness is OK, replace the recline motor (see «FRONT SEAT LINKAGE DISASSEMBLY/REASSEMBLY - DRIVER'S 8-WAY POWER»(ref-294739-S02684988922008081300000) ).