Driver Position Memory System (Dpms): Diagnosis Acura RL II facelift

DTC Troubleshooting

DRIVER POSITION MEMORY DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

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 SELECTION menu, select POWER SEAT/POWER MIRROR, then DTCs. If DTCs are found, troubleshoot the DTCs using B-CAN System Diagnosis Test Mode A (see «TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A»(ref-348551-S28830677002009112400000) ). If no DTCs are found, go to step 4.
4. Exit the DTC mode, and select the DATA LIST from the POWER SEAT/POWER MIRROR TEST MODE MENU.
5. Test each input and monitor each output under the condition show: 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, do the appropriate test at the control unit and terminal indicated in the table. Voltage drop tests should be done with the ignition switch to ON (II), all the connectors connected, and the meter negative test lead attached to a good body ground. Continuity tests should be done with the ignition switch to LOCK (0) and the indicated terminals disconnected. DATA LIST REFERENCE Data List Input/ Command Condition: Data List Indication Control Unit/Terminal Number/Test (If applicable) Possible cause if desired result is not obtained Door Mirror UP Switch Mirror select switch in LEFT, then RIGHT Mirror up switch pressed: ON Mirror up switch released: OFF MICU/P9 (WHT) Mirror select switch UP: 0V Center or DOWN: 5 V Faulty switch (see «POWER MIRROR SWITCH TEST/ REPLACEMENT»(ref-348602-S33128467232009112400000) ) An open in the wire A short to ground in the wire Faulty control unit Door Mirror Select in LEFT selection Mirror select switch in LEFT position: ON Select switch in CENTER or RIGHT position: OFF MICU/P11 (PUR) Mirror select switch LEFT: 0 V Center or RIGHT: 5 V Faulty switch (see «POWER MIRROR SWITCH TEST/ REPLACEMENT»(ref-348602-S33128467232009112400000) ) An open in the wire A short to ground in the wire Faulty control unit Door Mirror DOWN Switch Mirror select switch in LEFT, then RIGHT Mirror down switch pressed: ON Mirror switch released: OFF MICU/P10(PNK) Mirror select switch DOWN: 0 V Center or UP: 5 V Faulty switch (see «POWER MIRROR SWITCH TEST/ REPLACEMENT»(ref-348602-S33128467232009112400000) ) An open in the wire A short to ground in the wire Faulty control unit Door Mirror Select in Right selection Mirror select switch in RIGHT position: ON Select switch in CENTER or LEFT position: OFF MICU/P22 (GRY) Mirror select switch RIGHT: 0V Center or LEFT: 5 V Faulty switch (see «POWER MIRROR SWITCH TEST/ REPLACEMENT»(ref-348602-S33128467232009112400000) ) An open in the wire A short to ground in the wire Faulty control unit Door Mirror LEFT Switch Mirror select switch in LEFT, then RIGHT Mirror left switch pressed: ON Mirror switch released: OFF MICU/P25 (GRN) Mirror select switch LEFT: 0 V Center or RIGHT: 5 V Faulty switch (see «POWER MIRROR SWITCH TEST/ REPLACEMENT»(ref-348602-S33128467232009112400000) ) An open in the wire A short to ground in the wire Faulty control unit Door Mirror RIGHT Switch Mirror select switch in LEFT, then RIGHT Mirror right switch pressed: ON Mirror switch released: OFF MICU/P26 (BLU) Mirror select switch RIGHT: 0V Center or LEFT: 5 V Faulty switch (see «POWER MIRROR SWITCH TEST/ REPLACEMENT»(ref-348602-S33128467232009112400000) ) An open in the wire A short to ground in the wire Faulty control unit Slide Switch Forward Slide switch forward: ON Switch released: OFF Power seat control unit/A1, A7 (BLU) Slide switch forward: 0 V Switch released: 5 V Faulty switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(ref-348587-S03062371082009112400000) ) An open in the wire A short to ground in the wire Faulty control unit Slide Switch Backward Slide switch backward: ON Switch released: OFF Power seat control unit/A1, A27 (ORN/BLU) Slide switch backward: 0 V Switch released: 5 V Faulty switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(ref-348587-S03062371082009112400000) ) An open in the wire A short to ground in the wire Faulty control unit Recline Switch Forward Recline switch forward: ON Switch released: OFF Power seat control unit/A1, A6 (WHT/YEL) Recline switch forward: 0 V Switch released: 5 V Faulty switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(ref-348587-S03062371082009112400000) ) An open in the wire A short to ground in the wire Faulty control unit Recline Switch Backward Recline switch backward: ON Switch released: OFF Power seat control unit/A1, A25 (ORN/GRN) Recline switch backward: 0 V Switch released: 5 V Faulty switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(ref-348587-S03062371082009112400000) ) An open in the wire A short to ground in the wire Faulty control unit Front Up-Down Switch Up Front up-down switch up: ON Switch released: OFF Power seat control unit/A1, A5 (GRN/BLU) Front up-down switch up: 0 V Switch released: 5 V Faulty switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(ref-348587-S03062371082009112400000) ) An open in the wire A short to ground in the wire Faulty control unit Front Up-Down Switch Down Front up-down switch down: ON Switch released: OFF Power seat control unit/A1, A4 (RED/BLK) Front up-down switch down: 0 V Switch released: 5 V Faulty switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(ref-348587-S03062371082009112400000) ) An open in the wire A short to ground in the wire Faulty control unit Rear Up-Down Switch Up Rear up-down switch up: ON Switch released: OFF Power seat control unit/A1, A23 (GRN/ORN) Rear up-down switch up: 0 V Switch released: 5 V Faulty switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(ref-348587-S03062371082009112400000) ) An open in the wire A short to ground in the wire Faulty control unit Rear Up-Down Switch Down Rear up-down switch down: ON Switch released: OFF Power seat control unit/A1, A3 (BRN/BLK) Rear up-down switch up: 0 V Switch released: 5 V Faulty switch (see «POWER SEAT ADJUSTMENT SWITCH TEST/REPLACEMENT»(ref-348587-S03062371082009112400000) ) An open in the wire A short to ground in the wire Faulty control unit Ignition Switch for Power Seat Control Ignition switch ON (II): ON Ignition switch LOCK (0): OFF Power seat control unit/A35 (BLK/YEL) Ignition switch ON (II): 12 V Blown No. 21 (10 A) fuse in the driver's under-dash fuse/relay box An open in the wire Faulty 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 (BLK/BLU) Transmission range switch P: 0 V Faulty transmission range switch An open in the wire Faulty control unit Seat MEMO Switch Seat MEMO switch pressed: ON Switch released: OFF Driver's MPCS unit/A31 (ORN) Seat MEMO switch pressed: 0 V Switch released: 5 V more Faulty switch (see «DRIVING POSITION MEMORY SWITCH TEST/REPLACEMENT»(ref-348587-S34222164332009112400000) ) An open in the wire A short to ground in the wire Faulty control unit Poor ground (G601) Driver 1 Position Switch Driver position 1 switch pressed: ON Switch released: OFF Driver's MPCS unit/A29 (GRN) Driver's position 1 switch pressed: 0 V Switch released: 5 V more Faulty switch (see «DRIVING POSITION MEMORY SWITCH TEST/REPLACEMENT»(ref-348587-S34222164332009112400000) ) An open in the wire A short to ground in the wire Faulty control unit Poor ground (G601) Driver 2 Position Switch Driver position 2 switch pressed: ON Switch released: OFF Driver's MPCS unit/A30 (RED) Driver's position 2 switch pressed: 0 V Switch released: 5 V more Faulty switch (see «DRIVING POSITION MEMORY SWITCH TEST/REPLACEMENT»(ref-348587-S34222164332009112400000) ) An open in the wire A short to ground in the wire Faulty control unit Poor ground (G601) Column Tilt Up Switch Steering tilt switch up: ON Switch released: OFF Power tilt/telescopic steering control unit/A15 (BRN), A7 (LT GRN) Switch in TILT UP: 0 V Switch released: Battery voltage Faulty switch (see «POWER TILT/TELESCOPIC STEERING SWITCH TEST/REPLACEMENT»(ref-348587-S27920293092009112400000) ) An open in the wire A short to ground in the wire Faulty control unit Column Tilt Down Switch Steering tilt switch down: ON Switch released: OFF Power tilt/telescopic steering control unit/A15 (BRN), A6 (GRN) Switch in TILT DOWN: 0 V Switch released: Battery voltage Faulty switch (see «POWER TILT/TELESCOPIC STEERING SWITCH TEST/REPLACEMENT»(ref-348587-S27920293092009112400000) ) An open in the wire A short to ground in the wire Faulty control unit Column Telescopic Pull Switch Steering telescopic switch pull: ON Switch released: OFF Power tilt/telescopic steering control unit/A15 (BRN), A14 (PUR) Switch in TELESCOPIC PULL: 0 V Switch released: Battery voltage Faulty switch (see «POWER TILT/TELESCOPIC STEERING SWITCH TEST/REPLACEMENT»(ref-348587-S27920293092009112400000) ) An open in the wire A short to ground in the wire Faulty control unit Column Telescopic Push Switch Steering telescopic switch push: ON Switch released: OFF Power tilt/telescopic steering control unit/A15 (BRN), A6 (GRN) Switch in TELESCOPIC PUSH: 0 V Switch released: Battery voltage Faulty switch (see «POWER TILT/TELESCOPIC STEERING SWITCH TEST/REPLACEMENT»(ref-348587-S27920293092009112400000) ) An open in the wire A short to ground in the wire Faulty control unit Ignition Switch (ETS) Ignition switch ON (II): ON Ignition switch LOCK (0): OFF Power tilt/telescopic steering control unit/A9 (PNK) Ignition switch ON (II): Battery voltage Blown No. 7 (10 A) fuse in the driver's under-dash fuse/relay box An open in the wire Faulty control unit Slide Sensor Seat moving forward or backward: 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 A short to ground in the wire Faulty control unit Front Up-Down 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 A short to ground in the wire Faulty control unit Recline Sensor Seat-back moving forward or backward: ON Seat not moving: OFF Power seat control unit/A10 (WHT/RED) Pulses as seat moves: 2.5 V average Faulty sensor An open in the wire A short to ground in the wire Faulty control unit Rear Up-Down Sensor Seat rear moving up/down: ON Seat not moving: OFF Power seat control unit/A13 (YEL/BLK) Pulses as seat moves: 2.5 V average Faulty sensor An open in the wire A short to ground in the wire Faulty control unit Column Tilt Sensor Steering tilting up/down: ON Steering not moving: OFF Power tilt/telescopic steering control unit/A4 (ORN), A12 (BLU) Pulses as steering moves: 2.5 V average Faulty sensor An open in the wire A short to ground in the wire Faulty control unit Column Telescopic Sensor Steering telescopic pull/push: ON Steering not moving: OFF Power tilt/telescopic steering control unit/A5 (LT BLU), A13 (YEL) Pulses as steering moves: 2.5 V average Faulty sensor An open in the wire A short to ground in the wire Faulty control unit Left Mirror Horizontal Sensor Left mirror moves left/right: NORMAL Left mirror does not move: ABNORMAL Driver's MPCS unit/A10 (PUR), A19(WHT) Left mirror moving from full left to full right: A10 (about 0.1 V to 4.5V), A19(5V) Faulty sensor An open in the wire Faulty control unit Left Mirror Vertical Sensor Left mirror moves up/down: NORMAL Left mirror stopped: ABNORMAL Driver's MPCS unit/A9 (BLU), A19(WHT) Left mirror moving from full down to full up: A9 (about 0.1 V to 4.5 V), A19(5V) Faulty sensor An open in the wire Faulty control unit Right Door Mirror Horizontal Sensor Right mirror moves left/right: NORMAL Right mirror stopped: ABNORMAL Front passenger's MPCS unit/A6 (BLU), A13(PNK) Right mirror moving from full left to full right: A6 (about 0.1 V to 4.5 V), A13(5V) Faulty sensor An open in the wire Faulty control unit Right Door Mirror Vertical Sensor Right mirror moves up/down: NORMAL Right mirror stopped: ABNORMAL Front passenger's MPCS unit/A5 (RED), A13(PNK) Right mirror moving from full down to full up: A5 (about 0.1 V to 4.5 V), A13(5V) Faulty sensor An open in the wire Faulty control unit DPMS MEM Switch Driving position memory switch MEMO button pushed: ON Switch released: OFF Driver's MPCS unit/A31 (ORN) Driving position memory switch MEMO button pushed: A31 (about 1 V or less) MEMO button released: A31 (5 V or more) Faulty switch An open in the wire A short to ground in the wire Faulty control unit DPMS POS1 Switch Driving position memory switch POS1 button pushed: ON Switch released: OFF Driver's MPCS unit/A29 (GRN) Driving position memory switch POS1 button pushed: A29 (about 1 V or more) POS1 button released: A29 (5 V or more) Faulty switch An open in the wire A short to ground in the wire Faulty control unit DPMS POS2 Switch Driving position memory switch POS2 button pushed: ON Switch released: OFF Driver's MPCS unit/A30 (RED) Driving position memory switch POS2 button pushed: A30 (about 1 V or more) POS2 button released: A30 (5 V or more) Faulty switch An open in the wire A short to ground in the wire Faulty control unit
6. Exit the data list, and select function test.
7. Do each of the function tests listed in the table shown. 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 occur, do the appropriate test at the control unit and terminal indicated in the table. Voltage drop tests should be done with the ignition switch ON (II) and all the connectors connected. Continuity tests should be done with the ignition switch to LOCK (0) and the indicated terminals disconnected. Jumper tests should be done according to the instructions indicated. If the test indicates that the component operates normally, but the function will not operate by doing 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. COMPONENT OPERATION CHART Function Test Component and Operation Control Unit/Terminal Number/Test (If applicable) Possible cause if desired result is not obtained Power Seat: Slide Motor-Full Forward Seat slides forward Power seat control unit/B8 (BLU), A9 (BLK), B7 (WHT), B17 (YEL) Disconnect power seat control unit connectors A and B. Connect B8 to B17 and B7 to A9; driver's seat should slide forward. Faulty motor An open in the wire A short to ground in the wire Power Seat: Slide Motor-Full Backward Seat slides backward Power seat control unit/B8 (BLU), A9 (BLK), B7 (WHT), B17 (YEL) Disconnect power seat control unit connectors A and B. Connect B8 to B7 and B17 to A9; driver's seat should slide backward. Faulty motor An open in the wire A short to ground in the wire Power Seat: Front UP-DOWN Motor-Full Up Front of seat moves up Power seat control unit/B8 (BLU), A9 (BLK), B6 (BRN/WHT), B16(ORN) Disconnect power seat control unit connectors A and B. Connect B8 to B16 and B6 to A9; front of driver's seat should move up. Faulty motor An open in the wire A short to ground in the wire Power Seat: Front UP-DOWN Motor-Full Down Front of seat moves down Power seat control unit/B8 (BLU), A9 (BLK), B6 (BRN/ WHT), B16(ORN) Disconnect power seat control unit connectors A and B. Connect B8 to B6 and B16 to A9; front of driver's seat should move down. Faulty motor An open in the wire A short to ground in the wire Power Seat: Rear Up-Down Motor-Full Up Rear of seat moves up Power seat control unit/B1 (RED), A9 (BLK), B2 (GRN), B10(BLU/GRN) Disconnect power seat control unit connectors A and B. Connect B1 to B2 and B10 to A9; rear of driver's seat should move up. Faulty motor An open in the wire A short to ground in the wire Power Seat: Rear Up-Down Motor-Full Down Rear of seat moves down Power seat control unit/B1 (RED), A9 (BLK), B2 (GRN), B10(BLU/GRN) Disconnect power seat control unit connectors A and B. Connect B1 to B10 and B2 to A9; rear of driver's seat should move down. Faulty motor An open in the wire A short to ground in the wire Power Seat: Recline Motor-Full Forward Seat back moves forward Power seat control unit/B1 (RED), A9 (BLK), B9 (RED), B11 (GRY) Disconnect power seat control unit connectors A and B. Connect B1 to B11 and B9 to A9; driver's seat back should move forward. Faulty motor An open in the wire A short to ground in the wire Power Seat: Recline Motor-Full Backward Seat back moves backward Power seat control unit/B1 (RED), A9 (BLK), B9 (RED), B11 (GRY) Disconnect power seat control unit connectors A and B. Connect B1 to B9 and B11 to A9; driver's seat back should move backward. Faulty motor An open in the wire A short to ground in the wire Column Tilt Power tilt/telescopic steering tilts up Power tilt/telescopic steering control unit/B1 (BLK), B3 (WHT), B7 (ORN), B8 (LT BLU) Disconnect tilt/telescopic steering control unit connectors A and B. Connect B3 to B8 and B1 to B7; steering tilts up. Faulty motor An open in the wire A short to ground in the wire Column Tilt Power tilt/telescopic steering tilts down Power tilt/telescopic steering control unit/B1 (BLK), B3 (WHT), B7 (ORN), B8 (LT BLU) Disconnect tilt/telescopic steering control unit connectors A and B. Connect B3 to B8 and B1 to B7; steering tilts down. Faulty motor An open in the wire A short to ground in the wire Column Telescopic Power tilt/telescopic steering telescopic pull Power tilt/telescopic steering control unit/B1 (BLK), B3 (WHT), B6 (PNK), B4 (LT GRN) Disconnect tilt/telescopic steering control unit connectors A and B. Connect B3 to B7 and B1 to B8; steering telescopic pull. Faulty motor An open in the wire A short to ground in the wire Column Telescopic Power tilt/telescopic steering telescopic push Power tilt/telescopic steering control unit/B1 (BLK), B3 (WHT), B6 (PNK), B4 (LT GRN) Disconnect tilt/telescopic steering control unit connectors A and B. Connect B3 to B6 and B1 to B4; steering telescopic push. Faulty motor An open in the wire A short to ground in the wire

Power Seat Control Unit Input Test

Note. Before testing, 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 seat (see «FRONT SEAT REMOVAL/INSTALLATION»(ref-348560-S31157669462009112400000) ). NOTE: Be careful not to scratch the interior trim.
3. Disconnect the 40P connector (A) and 18P connector (B) from the power seat 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. With the connectors still disconnected, do the input test 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, go to step 6. POSSIBLE CAUSE RESULT REFERENCE Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained A39 BLK Under all conditions Check for continuity between the terminal A39 and power tilt/ telescopic steering control unit connector A (16P) terminal No. 11. There should be continuity. An open in the wire
6. Reconnect the connectors to the power seat control unit, and do 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. POSSIBLE CAUSE RESULT REFERENCE Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained A9 BLK Under all conditions Measure the voltage to ground: There should be less than 0.5 V. Poor ground(G601) An open in the wire B4 BLK B18 BLK A35 BLK/YEL Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. Blown No. 21 (10 A) fuse in the driver's under-dash fuse/relay box An open in the wire A37 BLU 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 (10 A) fuse in the driver's under-dash fuse/relay box An open in the wire B1 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 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 A31 BLK/BLU Shift lever in P Measure the voltage to ground: There should be less than 1 V. Faulty transmission range switch An open in the wire Shift lever out of P Measure the voltage to ground: There should be about 10 V. A short to ground in the wire

Power Mirror Circuit Input Test

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

MICU

Scheme 11

Scheme 12

Scheme 13

1. Turn the ignition switch to LOCK (0).
2. Remove the left side kick panel (see «TRIM REMOVAL/INSTALLATION - DOOR AREAS»(ref-348548-S12346227902009112400000) ).
3. Disconnect driver's under-dash fuse/relay box connector P (30P).
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 connector to the driver's under-dash fuse/relay box, turn the ignition switch to ON (II), and do 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, go to step 6. POSSIBLE CAUSE RESULT REFERENCE Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained P9 WHT Power mirror switch in UP Measure the voltage to ground: There should be less than 0.1 V. Poor ground(G501) Faulty power mirror switch An open in the wire Power mirror switch released Measure the voltage to ground: There should be 5 V or more. Faulty power mirror switch A short to ground in the wire P10 PNK Power mirror switch in DOWN Measure the voltage to ground: There should be less than 0.1 V. Poor ground(G501) Faulty power mirror switch An open in the wire Power mirror switch released Measure the voltage to ground: There should be 5 V or more. Faulty power mirror switch A short to ground in the wire P25 GRN Power mirror switch in LEFT Measure the voltage to ground: There should be less than 0.1 V. Poor ground(G501) Faulty power mirror switch An open in the wire Power mirror switch released Measure the voltage to ground: There should be 5 V or more. Faulty power mirror switch A short to ground in the wire P26 BLU Power mirror switch in RIGHT Measure the voltage to ground: There should be less than 0.1 V. Poor ground(G501) Faulty power mirror switch An open in the wire Power mirror switch released Measure the voltage to ground: There should be 5 V or more. Faulty power mirror switch A short to ground in the wire P11 PUR Power mirror switch in L position Measure the voltage to ground: There should be less than 0.1 V. Poor ground(G501) Faulty power mirror switch An open in the wire Power mirror switch released Measure the voltage to ground: There should be 5 V or more. Faulty power mirror switch A short to ground in the wire P22 GRY Power mirror switch in R position Measure the voltage to ground: There should be less than 0.1 V. Poor ground(G501) Faulty power mirror switch An open in the wire Power mirror switch released Measure the voltage to ground: There should be 5 V or more. Faulty power mirror switch A short to ground in the wire Driver's MPCS Unit
6. Turn the ignition switch to LOCK (0), and remove the driver's door panel (see «FRONT DOOR PANEL REMOVAL/INSTALLATION»(ref-348568-S32747857942009112400000) ).
7. Disconnect driver's MPCS unit connector A (40P).
8. Inspect the connector and socket terminal 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 9.
9. With the connector still disconnected, do 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, go to step 10. POSSIBLE CAUSE RESULT REFERENCE Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained A5 (1) BLK Under all conditions Measure the voltage to ground: There should be less than 0.1 V. Poor ground (G601) Faulty power mirror switch An open in the wire A7 (1) WHT 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 (10 A) fuse in the driver's under-dash fuse/relay box An open in the wire A8 GRY Under all conditions Check for continuity between the terminal A8 and front passenger's MPCS unit connector A (28P) terminal No. 4: There should be continuity. Faulty driver's under-dash fuse/relay box Faulty passenger's under-dash fuse/relay box An open in the wire A16 ORN Under all conditions Connect the terminals A7 and A16, and terminals A5 and A38: The left power mirror moves UP. Faulty left power mirror actuator An open in the wire A38 YEL A17 GRN Under all conditions Connect the terminals A7 and A17, and terminals A5 and A38: The left power mirror swings LEFT. Faulty left power mirror actuator An open in the wire A38 YEL (1) Reconnect the connector to the driver's MPCS unit. Front Passenger's MPCS Unit
10. Remove the front passenger's door panel (see «FRONT DOOR PANEL REMOVAL/INSTALLATION»(ref-348568-S32747857942009112400000) ).
11. Disconnect front passenger's MPCS unit connector A (28P).
12. 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 13.
13. With the connector still disconnected, do 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, go to step 14. POSSIBLE CAUSE RESULT REFERENCE Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained A7 (1) BLK Under all conditions Measure the voltage to ground: There should be less than 0.1 V. Poor ground (G506) Faulty power mirror switch An open in the wire A2 (1) WHT 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 (10 A) fuse in the driver's under-dash fuse/relay box An open in the wire A4 GRY Under all conditions Check for continuity between the terminal A4 and driver's MPCS unit connector A (40P) terminal No. 8: There should be continuity. Faulty driver's under-dash fuse/relay box Faulty passenger's under-dash fuse/relay box An open in the wire A10 LT GRN Under all conditions Connect the terminals A2 and A10, and terminals A7 and A25: The right power mirror moves UP. Faulty right power mirror actuator An open in the wire A25 GRY A11 GRN Under all conditions Connect the terminals A2 and All, and terminals A7 and A25: The right power mirror swings RIGHT. Faulty right power mirror actuator An open in the wire A25 GRY (1) Reconnect the connector to the front passenger's MPCS unit.
14. If multiple failures are found on more than one control unit, replace the driver's under-dash fuse/relay box (includes the MICU). If input failures are related to a particular control unit, replace the control unit.

Power Tilt/Telescopic Steering Control Unit Input Test

Note. Before testing, 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 14

1. Turn the ignition switch to LOCK (0).
2. Remove the driver's dashboard undercover (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(ref-348558-S41752548762009112400000) ) and the driver's dashboard lower cover (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(ref-348558-S41752548762009112400000) ), then remove the steering column covers (see «STEERING COLUMN REMOVAL AND INSTALLATION»(ref-348511-S08332992362009112400000) ).
3. Disconnected the 16P connector (A) and the 8P connector (B) from the power tilt/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 do 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. POSSIBLE CAUSE RESULT REFERENCE 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 0.1 V. Poor ground(G501) An open in the wire B1 BLK A1 WHT 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 (10 A) fuse in the driver's under-dash fuse/relay box An open in the wire A9 PNK Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. Blown No. 21 (10 A) fuse in the driver's 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. 23 (P/W) (50 A) fuse in the under-hood fuse/relay box Blown No. 26 (20 A) fuse in the driver's 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. 23 (P/W) (50 A) fuse in the under-hood fuse/relay box Blown No. 25 (20 A) fuse in the driver's under-dash fuse/relay box An open in the wire

Scheme 15

Scheme 16

1. Remove the driver's door panel (see «FRONT DOOR PANEL REMOVAL/INSTALLATION»(ref-348568-S32747857942009112400000) ).
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 17

Scheme 18

1. Remove the power seat adjustment switch knobs (A) and recline cover from the driver's power seat (see «FRONT SEAT CUSHION COVER REPLACEMENT»(ref-348560-S19367824082009112400000) ), 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 19

Scheme 20

Scheme 21

Scheme 22

1. Remove the driver's seat (see «FRONT SEAT REMOVAL/INSTALLATION»(ref-348560-S31157669462009112400000) ).
2. Disconnect the connector from each power seat motor.
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 it: Slide motor (see «FRONT SEAT SLIDE MOTOR REPLACEMENT»(ref-348560-S15582503672009112400000) ) Front up-down motor (see «FRONT SEAT UP-DOWN MOTOR REPLACEMENT»(ref-348560-S23476914912009112400000) ) Rear up-down motor (see «FRONT SEAT UP-DOWN MOTOR REPLACEMENT»(ref-348560-S23476914912009112400000) )

Scheme 23

Scheme 24

1. Remove the driver's seat-back cover (see «FRONT SEAT-BACK COVER REPLACEMENT»(ref-348560-S40298967312009112400000) ).
2. Disconnect the 5P connector from the recline motor.
3. Test the 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 recline motor (see «FRONT SEAT RECLINE MOTOR REPLACEMENT»(ref-348560-S23571390172009112400000) ).

Scheme 25

Scheme 26

1. Remove the driver's dashboard undercover (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(ref-348558-S41752548762009112400000) ), and the driver's dashboard lower cover (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(ref-348558-S41752548762009112400000) ), then remove the steering column covers (see «STEERING COLUMN REMOVAL AND INSTALLATION»(ref-348511-S08332992362009112400000) ).
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 27

Scheme 28

Scheme 29

1. Remove the driver's dashboard undercover (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(ref-348558-S41752548762009112400000) ), and the driver's dashboard lower cover (see «DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION»(ref-348558-S41752548762009112400000) ), then remove the steering column covers (see «STEERING COLUMN REMOVAL AND INSTALLATION»(ref-348511-S08332992362009112400000) ).
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»(ref-348511-S08332992362009112400000) ).