Multiplex Integrated Control System Honda CR-V IV

Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode 1 and Test Mode 2 (without the HDS)

Shift to Test Mode 1

Check the PCM for DTCs and troubleshoot PCM or F-CAN loss of communication errors first, then do this diagnosis if the HDS is not available.

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1. Check the No. A29 (10 A) fuse in the under-hood fuse/relay box, and the No. B5 (10 A) fuse in the under-dash fuse/relay box. If a fuse is blown, find and correct the cause, then replace the fuse.
2. Move the interior light switch to the DOOR position. NOTE: Do steps 3- 7 within 10 seconds.
3. Turn the ignition switch to ON (II).
4. Pull and hold the combination light switch in its Passing position.
5. While holding the switch, turn the headlight switch to the Parking position, then release, pull, and hold the combination switch in its Passing position.
6. Turn off the headlights, then turn the headlight switch to the Parking position, and turn the lights ON and OFF two more times.
7. Release the combination light switch.
8. Wait 5 seconds, and watch the individual map lights, ceiling light (if equipped), and ignition key light (if equipped). When the lights flash quickly once, the system enters Test Mode 1.
9. If individual map light keeps blinking after entering Test Mode 1. Check for B-CAN Unit communication error. Error Display code (blinking pattern) Error in the bus (bus off status) 1 Gauge control module communication error (AT frames cannot be received) 5
10. Check for B-CAN DTCs indicated by the LCD display while still in Test Mode 1. Press the SEL/RESET button to display the next code. After you get to the last code, the display shows END. If no DTCs are stored, the display reads NO. NOTE: If the test times out, turn the ignition switch to LOCK (0), and repeat steps 3 - 7 . The control unit that has stored the code can be identified by the number shown on the LCD display. Control Unit Control Unit I.D. Number MICU 10 Gauge control module 50 Climate control unit 51 Automatic lighting/sunlight sensor 72 Immobilizer-keyless control unit 96 NOTE: You can also check B-CAN communication status by the following methods: The MICU self-diagnostic function Test Mode 1 and Test Mode 2 can check some communication statuses and some switch circuits. «THE GAUGE CONTROL MODULE SELF-DIAGNOSTIC FUNCTION CAN CHECK COMMUNICATION STATUS»(ref-595382-S25748196052014013100000) .
11. Record all DTCs and troubleshoot them in this order: Battery voltage DTCs Internal error DTCs Loss of communication DTCs Signal error DTCs
12. Clear the DTCs by pressing and holding the SEL/RESET button for about 10 seconds.
13. You will hear a beep to confirm the codes have been cleared. Operate the devices that failed, and recheck for codes. Shift to Test Mode 2 NOTE: Do steps 13- 17 within 10 seconds.
14. Pull and hold the combination light switch in its Passing position.
15. While holding the switch, turn the headlight switch to the Parking position, then release, pull, and hold the combination switch in its Passing position.
16. Turn off the headlights, then turn the headlight switch to the Parking position, and turn the lights ON and OFF two more times.
17. Release the combination light switch.
18. Wait 5 seconds, and watch the individual map lights and ignition key light. When the lights flash two times quickly and then go off, the system is in Test Mode 2. NOTE: If you repeat this procedure, the system automatically returns to Test Mode 1.
19. The following tables list the circuits that can be checked in Test Mode 2. Operate the switch that is most closely related to the problem. If the circuit is OK, the individual map lights, ceiling light, and ignition key light blink once. If the circuit is faulty, there is no such indication. If the front individual map lights, ceiling light, and ignition key light do not blink even when a switch is operated, check two or three other circuits listed in the table. If the front individual map lights, ceiling light, and ignition key light blink for each circuit, the additional circuits are OK; repair the short or open circuit that failed the test in step 18 . If the front individual map lights, ceiling light, and ignition key light do not blink again, this means that the control unit has failed without triggering a DTC. Test a few more circuits. If they also fail, check the related control units using their input tests. Driver's door lock switch (UNLOCK) Windshield washer switch Driver's door lock switch (LOCK) Windshield wiper motor park position (Auto stop) Front Passenger's door lock switch (UNLOCK) Rear window wiper ON switch Front Passenger's door lock switch (LOCK) Rear window wiper INT switch Driver's door lock knob switch (UNLOCK) Rear window washer switch Driver's door lock knob switch (LOCK) Rear window wiper motor park position (Auto stop) Driver's door key cylinder switch (UNLOCK) (1) Turn signal switch (LEFT) Driver's door key cylinder switch (LOCK) (1) Turn signal switch (RIGHT) Front passenger's door lock knob switch (UNLOCK) Hazard warning switch Left rear door lock knob switch (UNLOCK) Headlight switch (ON) Right rear door lock knob switch (UNLOCK) Headlight switch (OFF) Driver's door switch Lighting switch Front passenger's door switch Dimmer switch Left rear door switch Passing switch Right rear door switch Fog light switch Tailgate latch switch Ignition key switch Audio switch Security hood switch Windshield wiper HI/LO switch Brake pedal position switch Windshield wiper INT/LO switch Transmission range switch (P) Windshield wiper MIST switch A/C pressure switch Windshield wiper intermittent dwell time controller (1) A second key is necessary to check the key cylinder inputs. Be sure to rotate the key cylinder switch two times to each position (lock and lock, unlock and unlock) to ensure the door lock knob switch is in the appropriate position.

Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial Communication and DTC Checks

Check the PCM for DTCs and troubleshoot PCM or F-CAN loss of communication errors first, then do this diagnosis if the symptom is related to the B-CAN system.

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1. Compare the symptom with this list of B-CAN related systems: Gauge control module Exterior lights Turn signals Entry light control Interior lights Safety indicators Horns (security and panic) Chimes (key-in, seat belt, lights-on, and parking brake) Power window/moonroof timer Wiper/washer Security Keyless entry Power door locks Key interlock Dashlights brightness Immobilizer Daytime running lights Climate control If the symptom is related to the B-CAN, go to step 2. If the symptom is not related to the B-CAN, go to the system symptom troubleshooting.
2. Connect the HDS to the data link connector (DLC) (A), then turn the ignition switch to ON (II).
3. From the BODY ELECTRICAL SYSTEM SELECT menu, select B-CAN CONTROL UNITS INFORMATION, and then select CHECK CONNECTED CONTROL UNITS listed to see if the following control units are communicating with the HDS. MICU Gauge control module Immobilizer-keyless control unit Climate control unit (if applicable) Automatic lighting control unit NOTE: If a unit is communicating with the HDS, DETECT is displayed. If a unit is not communicating or the vehicle is not equipped, "NOT AVAILABLE" is displayed. The HDS only checks the status one time when BODY ELECTRICAL is selected. To recheck the status after repair, reboot the HDS. If all control units are communicating with the HDS, go to step 4 . If any of the control units are not communicating, go to «B-CAN SYSTEM DIAGNOSIS TEST MODE B»(/honda/cr-v/iv-2011-2015/remont/communication-devices/#multiplex-integrated-control-system__body-electrical-troubleshooting-b-can-system) . If all units are not communicating or only the MICU is communicating, «go to MICU DTC U1280 troubleshooting»(ref-595410-S03385927402014013100000) .
4. Select the system that has the problem from the BODY ELECTRICAL SYSTEM SELECT menu, then select DTCs. If any DTCs are indicated, go to step 5 . If the problem is related to one of the following items and the system that is malfunctioning does not stop or turn off, go to «B-CAN SYSTEM DIAGNOSIS TEST MODE C»(/honda/cr-v/iv-2011-2015/remont/communication-devices/#multiplex-integrated-control-system__body-electrical-troubleshooting-b-can-system) . If the problem is related to one of the following items and the system that is malfunctioning does not run or turn on, go to «B-CAN SYSTEM DIAGNOSIS TEST MODE D»(/honda/cr-v/iv-2011-2015/remont/communication-devices/#multiplex-integrated-control-system__body-electrical-troubleshooting-b-can-system) . Exterior lights Turn signals Entry light control Interior lights Horns (security and panic) Wiper/washer Power window Power door locks If the problem is related to one of the following items, go to the troubleshooting for that individual system. Gauge control module Safety indicators Chimes (key-in, seat belt, lights-on, and parking brake) Security Keyless entry Key interlock Dashlights brightness Audio system Immobilizer Rear window defogger (climate control) Climate control
5. Record all DTCs, and sort them by DTC type.
6. Troubleshoot the DTC(s) in this order: Battery voltage DTCs. Internal error DTCs. Loss of communication DTCs. Signal error DTCs.

Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode B - Control Unit Not Communicating

Do this diagnosis if any of the control units are not communicating (NOT AVAILABLE is displayed in the HDS) as found by the Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode A - Initial Communication and DTC Checks .

1. Using the HDS, select the system that has the symptom from the BODY ELECTRICAL SYSTEM SELECT menu.
2. Select DTCs, and then check for loss of communication DTCs. If any loss of communication DTCs are indicated, go to step 3 . If any loss of communication DTCs are not indicated, faulty MICU; «REPLACE THE UNDER-DASH FUSE/RELAY BOX»(ref-595370-S18714513632014013100000) .
3. Do the power, ground, and communication part of the input test for the unit(s) not communicating with the HDS. Unit not communicating «MICU»(/honda/cr-v/iv-2011-2015/remont/communication-devices/#multiplex-integrated-control-system__micu-input-test) «GAUGE CONTROL MODULE»(ref-595382-S32465124192014013100000) «IMMOBILIZER-KEYLESS CONTROL UNIT»(ref-595436-S28529793762014013100000) «CLIMATE CONTROL UNIT»(ref-595407-S28667499242014013100000) «AUTOMATIC LIGHTING CONTROL UNIT»(ref-595409-S36005753162014013100000)

Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode C - No DTCs and Output Won't Shut OFF

Do this diagnosis if a component that is controlled by the B-CAN system does not stop or turn off.

Note. If the component does not turn on, go to B-CAN SYSTEM DIAGNOSIS TEST MODE D . See the B-CAN system unit input/output index for a list of input and output devices and the control units that monitor the input and control the output devices.

1. Check for DTCs by selecting the system MODE MENU from the HDS. If any DTCs are indicated, go to «B-CAN SYSTEM DIAGNOSIS TEST MODE A»(/honda/cr-v/iv-2011-2015/remont/communication-devices/#multiplex-integrated-control-system__body-electrical-troubleshooting-b-can-system) . If any DTCs are not indicated, go to step 2 .
2. Turn off the switch that controls the malfunctioning component.
3. Select the applicable system from the system MODE MENU, then select DATA LIST, and check the input of the switch that controls the related component. If HDS indicates the switch is OFF, go to step 4 . If HDS indicates the switch is not OFF, go to step 6 .
4. In the DATA LIST, check the output signal of the malfunctioning component. If the output signal is OFF, go to step 5 . If the output signal is not OFF, replace the control unit that controls the device that will not turn OFF.
5. Check the relay that does not stop or turn off, if applicable, then check for a short in the wire between the relay and the component, the relay and control unit, or the component and control unit. If the relay and the wire harness are OK, replace the control unit that controls the component that will not stop or turn OFF. If the relay and the wire harness are not OK, replace the relay or repair/replace the wire harness.
6. Check the switch, then check for a short in the wire between the switch and the control unit that monitors the switch. If the switch and the wire harness are OK, replace the control unit that monitors the switch. If the switch and the wire harness are not OK, replace the switch or repair/replace the appropriate wire harness.

Body Electrical Troubleshooting - B-CAN System Diagnosis Test Mode D - No DTCs and Output Won't Turn ON

Do this diagnosis if a component that is controlled by the B-CAN system does not run or come on.

Note. If the component does not turn off or stop, go to B-CAN SYSTEM DIAGNOSIS TEST MODE C . See the B-CAN system unit input/output index for a list of input and output devices and the control units that monitor the input and control the output devices.

1. Check the fuse of the malfunctioning output device. If the fuse is OK, go to step 2 . If the fuse is not OK, replace the fuse. If the fuse blows again, repair the short to ground on the fuse circuit of the malfunctioning device.
2. Check for DTCs by selecting the system MODE MENU from the HDS. If any DTCs are indicated, go to «B-CAN SYSTEM DIAGNOSIS TEST MODE A»(/honda/cr-v/iv-2011-2015/remont/communication-devices/#multiplex-integrated-control-system__body-electrical-troubleshooting-b-can-system) . If any DTCs are not indicated, go to step 3 .
3. Turn ON the switch that controls the malfunctioning component.
4. Select the applicable system from the system MODE MENU, then select DATA LIST, and check the input of the switch that controls the related component. If there is an output signal, go to step 5 . If there is not an output signal, go to step 9 .
5. Check the relay (if applicable) and ground, then check for an open or a short in the circuit for the malfunctioning component. If the relay and the wire harness are OK, go to step 6 . If the relay and the wire harness are not OK, replace the relay or repair the wire circuit.
6. Do the function test for the malfunctioning component. If the output device pass the function test, go to step 7 . If the output device does not pass the function test, replace the component.
7. With the malfunctioning output device connected, connect a voltmeter between the malfunctioning output device and body ground on the wire that the control unit uses to control the output device circuit.
8. Select FUNCTIONAL TEST from the system MODE MENU, and do the forced operation test of the malfunctioning component. If the voltage changes (12 V to 0 V or 0 V to 12 V), inspect the ground for the component. If OK, replace the component. If the voltage does not change, replace the control unit that controls the malfunctioning component.
9. Select DATA LIST from the system MODE MENU, and make sure the switch signal input for the malfunctioning system indicates a change when operated. If the switch input indicates ON when the switch is ON, replace the control unit that controls the malfunctioning component. If the switch input does not indicate ON when the switch is ON, go to step 10 .
10. Check the switch and its ground (if applicable), then check for an open or a short in the wire between the switch and the control unit that monitors it. If the switch and the wire harness are OK, replace the control unit that monitors the switch. If the switch and the wire harness are not OK, replace the switch, or repair/replace the wire harness.

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1. F-CAN circuit resistance check: 1. Turn the ignition switch to LOCK (0). 2. Jump the SCS line with the HDS. 3. Disconnect the following connector. PCM connector A (49P) 4. Disconnect the HDS. 5. Measure the resistance between test points 1 and 2. Test condition IG LOCK (0) PCM connector A (49P): disconnected Test circuit F CAN-H, F CAN-L Test point 1 PCM connector A (49P) No. 3 (WHT) Test point 2 PCM connector A (49P) No. 4 (RED) Is there about 46-58 ohms? YES : Go to step 12 . NO : Go to step 2.
2. Shorted wire check (F CAN-H line to F CAN-L line): 1. Disconnect the following connectors. Gauge control module 32P connector VSA modulator-control unit 38P connector Steering angle sensor 4P connector EPS control unit connector A (11P) Real time AWD control unit 24P connector (with real time AWD) SRS unit connector A (39P) TPMS control unit 20P connector Audio-navigation unit connector B (20P) (with navigation) Check for continuity between test points 1 and 2. Test condition IG LOCK (0) PCM connector A (49P): disconnected Gauge control module 32P connector: disconnected VSA modulator-control unit 38P connector: disconnected Steering angle sensor 4P connector: disconnected EPS control unit connector A (11P): disconnected Real time AWD control unit 24P connector (with real time AWD): disconnected SRS unit connector A (39P): disconnected TPMS control unit 20P connector: disconnected Audio-navigation unit connector B (20P) (with navigation): disconnected Test circuit F CAN-H, F CAN-L Test point 1 PCM connector A (49P) No. 3 (WHT) Test point 2 PCM connector A (49P) No. 4 (RED) Is there continuity? YES : Repair a short in the F CAN-H wire to F CAN-L wire between PCM terminals A3 and A4. NO : The F CAN-H wire and F CAN-L wires are not shorted. Go to step 3.
3. Open wire check (F CAN-H line) 1: 1. Check for continuity between test points 1 and 2. Test condition IG LOCK (0) PCM connector A (49P): disconnected Gauge control module 32P connector: disconnected VSA modulator-control unit 38P connector: disconnected Steering angle sensor 4P connector: disconnected EPS control unit connector A (11P): disconnected Real time AWD control unit 24P connector (with real time AWD): disconnected SRS unit connector A (39P): disconnected TPMS control unit 20P connector: disconnected Audio-navigation unit connector B (20P) (with navigation): disconnected Test circuit F CAN-H Test point 1 PCM connector A (49P) No. 3 (WHT) Test point 2 Gauge control module 32P connector No. 19 (WHT) Is there continuity? YES : The F CAN-H wire is not open. Go to step 4. NO : Repair an open in the F CAN-H wire between the PCM (A3) and the gauge control module.
4. Open wire check (F CAN-H line) 2: 1. Check for continuity between test points 1 and 2. Test condition IG LOCK (0) PCM connector A (49P): disconnected Gauge control module 32P connector: disconnected VSA modulator-control unit 38P connector: disconnected Steering angle sensor 4P connector: disconnected Real time AWD control unit 24P connector (with real time AWD): disconnected EPS control unit connector A (11P): disconnected SRS unit connector A (39P): disconnected TPMS control unit 20P connector: disconnected Audio-navigation unit connector B (20P) (with navigation): disconnected Test circuit F CAN-H Test point 1 PCM connector A (49P) No. 3 (WHT) Test point 2 VSA modulator-control unit 38P connector No. 38 (WHT) Is there continuity? YES : The F CAN-H wire is not open. Go to step 5. NO : Repair an open in the F CAN-H wire between the PCM (A3) and the VSA modulator-control unit.
5. Open wire check (F CAN-H line) 3: 1. Check for continuity between test points 1 and 2. Test condition IG LOCK (0) PCM connector A (49P): disconnected Gauge control module 32P connector: disconnected VSA modulator-control unit 38P connector: disconnected Steering angle sensor 4P connector: disconnected EPS control unit connector A (11P): disconnected Real time AWD control unit 24P connector (with real time AWD): disconnected SRS unit connector A (39P): disconnected TPMS control unit 20P connector: disconnected Audio-navigation unit connector B (20P) (with navigation): disconnected Test circuit F CAN-H Test point 1 PCM connector A (49P) No. 3 (WHT) Test point 2 EPS control unit connector A (11P) No. 7 (WHT) Is there continuity? YES (with real time AWD) : The F CAN-H wire is not open. Go to step 6. YES (without real time AWD) : The F CAN-H wire is not open. Go to step 7 . NO : Repair an open in the F CAN-H wire between the PCM (A3) and the EPS control unit.
6. Open wire check (F CAN-H line) 4: 1. Check for continuity between test points 1 and 2. Test condition IG LOCK (0) PCM connector A (49P): disconnected Gauge control module 32P connector: disconnected VSA modulator-control unit 38P connector: disconnected Steering angle sensor 4P connector: disconnected EPS control unit connector A (11P): disconnected Real time AWD control unit 24P connector (with real time AWD): disconnected SRS unit connector A (39P): disconnected TPMS control unit 20P connector: disconnected Audio-navigation unit connector B (20P) (with navigation): disconnected Test circuit F CAN-H Test point 1 PCM connector A (49P) No. 3 (WHT) Test point 2 Real time AWD control unit 24P No. 14 (WHT) Is there continuity? YES : The F CAN-H wire is not open. Go to step 7. NO : Repair an open in the F CAN-H wire between the PCM (A3) and the real time AWD control unit.
7. Open wire check (F CAN-L line) 1: 1. Check for continuity between test points 1 and 2. Test condition IG LOCK (0) PCM connector A (49P): disconnected Gauge control module 32P connector: disconnected VSA modulator-control unit 38P connector: disconnected Steering angle sensor 4P connector: disconnected EPS control unit connector A (11P): disconnected Real time AWD control unit 24P connector (with real time AWD): disconnected SRS unit connector A (39P): disconnected TPMS control unit 20P connector: disconnected Audio-navigation unit connector B (20P) (with navigation): disconnected Test circuit F CAN-L Test point 1 PCM connector A (49P) No. 4 (RED) Test point 2 Gauge control module 32P connector No. 20 (RED) Is there continuity? YES : The F CAN-L wire is not open. Go to step 8. NO : Repair an open in the F CAN-L wire between the PCM (A4) and the gauge control module.
8. Open wire check (F CAN-L line) 2: 1. Check for continuity between test points 1 and 2. Test condition IG LOCK (0) PCM connector A (49P): disconnected Gauge control module 32P connector: disconnected VSA modulator-control unit 38P connector: disconnected Steering angle sensor 4P connector: disconnected EPS control unit connector A (11P): disconnected Real time AWD control unit 24P connector (with real time AWD): disconnected SRS unit connector A (39P): disconnected TPMS control unit 20P connector: disconnected Audio-navigation unit connector B (20P) (with navigation): disconnected Test circuit F CAN-L Test point 1 PCM connector A (49P) No. 4 (RED) Test point 2 VSA modulator-control unit 38P connector No. 26 (RED) Is there continuity? YES : The F CAN-L wire is not open. Go to step 9. NO : Repair an open in the F CAN-L wire between the PCM (A4) and the VSA modulator-control unit.
9. Open wire check (F CAN-L line) 3: 1. Check for continuity between test points 1 and 2. Test condition IG LOCK (0) PCM connector A (49P): disconnected Gauge control module 32P connector: disconnected VSA modulator-control unit 38P connector: disconnected Steering angle sensor 4P connector: disconnected EPS control unit connector A (11P): disconnected Real time AWD control unit 24P connector (with real time AWD): disconnected SRS unit connector A (39P): disconnected TPMS control unit 20P connector: disconnected Audio-navigation unit connector B (20P) (with navigation): disconnected Test circuit F CAN-L Test point 1 PCM connector A (49P) No. 4 (RED) Test point 2 EPS control unit connector A (11P) No. 9 (RED) Is there continuity? YES (with real time AWD) : The F CAN-L wire is not open. Go to step 10. YES (without real time AWD) : The F CAN-L wire is not open. Go to step 11 . NO : Repair an open in the F CAN-L wire between the PCM (A4) and the EPS control unit.
10. Open wire check (F CAN-L line) 4: 1. Check for continuity between test points 1 and 2. Test condition IG LOCK (0) PCM connector A (49P): disconnected Gauge control module 32P connector: disconnected VSA modulator-control unit 38P connector: disconnected Steering angle sensor 4P connector: disconnected EPS control unit connector A (11P): disconnected Real time AWD control unit 24P connector (with real time AWD): disconnected SRS unit connector A (39P): disconnected TPMS control unit 20P connector: disconnected Audio-navigation unit connector B (20P) (with navigation): disconnected Test circuit F CAN-L Test point 1 PCM connector A (49P) No. 4 (RED) Test point 2 Real time AWD control unit 24P No. 24 (RED) Is there continuity? YES : The F CAN-L wire is not open. Go to step 11. NO : Repair an open in the F CAN-L wire between the PCM (A4) and the real time AWD control unit.
11. VSA modulator-control unit internal resistance check: 1. Reconnect VSA modulator-control unit 38P connector. 2. Measure the resistance between test points 1 and 2. Test condition IG LOCK (0) PCM connector A (49P): disconnected Gauge control module 32P connector: disconnected Steering angle sensor 4P connector: disconnected EPS control unit connector A (11P): disconnected Real time AWD control unit 24P connector (with real time AWD): disconnected SRS unit connector A (39P): disconnected TPMS control unit 20P connector: disconnected Audio-navigation unit connector B (20P) (with navigation): disconnected Test circuit F CAN-H, F CAN-L Test point 1 PCM connector A (49P) No. 3 (WHT) Test point 2 PCM connector A (49P) No. 4 (RED) Is there about 108-132 ohms? YES : The VSA modulator-control unit is OK. Go to step 12. NO : Replace the original VSA modulator-control unit See «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-595411-S13354206342014013100000) , «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-595411-S33795849562014013100000) or «VSA SENSOR NEUTRAL POSITION MEMORIZATION»(ref-595411-S26728862432014013100000) .
12. Shorted wire check (F CAN-H line): 1. Disconnect the following connectors: Gauge control module 32P connector VSA modulator-control unit 38P connector Steering angle sensor 4P connector EPS control unit connector A (11P) Real time AWD control unit 24P connector (with real time AWD): disconnected SRS unit connector A (39P) TPMS control unit 20P connector Audio-navigation unit connector B (20P) (with navigation) Check for continuity between test points 1 and 2. Test condition IG LOCK (0) PCM connector A (49P): disconnected Gauge control module 32P connector: disconnected VSA modulator-control unit 38P connector: disconnected Steering angle sensor 4P connector: disconnected EPS control unit connector A (11P): disconnected Real time AWD control unit 24P connector (with real time AWD): disconnected SRS unit connector A (39P): disconnected TPMS control unit 20P connector: disconnected Audio-navigation unit connector B (20P) (with navigation): disconnected Test circuit F CAN-H Test point 1 PCM connector A (49P) No. 3 (WHT) Test point 2 Body ground Is there continuity? YES : Repair a short in the F CAN-H wire between PCM (A3) and the gauge control module, the VSA modulator-control unit, the steering angle sensor, the EPS control unit, the real time AWD control unit, the SRS unit, the TPMS control unit, the navigation unit, or the DLC. NO : The F CAN-H wire is OK. Go to step 13.
13. Shorted wire check (F CAN-L line): 1. Check for continuity between test points 1 and 2. Test condition IG LOCK (0) Test circuit F CAN-L Test point 1 PCM connector A (49P) No. 4 (RED) Test point 2 Body ground Test condition IG LOCK (0) PCM connector A (49P): disconnected Gauge control module 32P connector: disconnected VSA modulator-control unit 38P connector: disconnected Steering angle sensor 4P connector: disconnected EPS control unit connector A (11P): disconnected Real time AWD control unit 24P connector (with real time AWD): disconnected SRS unit connector A (39P): disconnected TPMS control unit 20P connector: disconnected Audio-navigation unit connector B (20P) (with navigation): disconnected Test circuit F CAN-L Test point 1 PCM connector A (49P) No. 4 (RED) Test point 2 Body ground Is there continuity? YES : Repair a short in the F CAN-L wire between PCM (A4) and the gauge control module, the VSA modulator-control unit, the steering angle sensor, the EPS control unit, the real time AWD control unit, the SRS unit, the TPMS control unit, the navigation unit, or the DLC. NO : The F CAN-L wire is OK. Go to step 14.
14. Gauge control module check: 1. Reconnect all connectors. 2. Connect the HDS to the DLC. 3. Disconnect the following connector. Gauge control module 32P connector 4. Turn the ignition switch to ON (II), and read the HDS. Does the HDS identify the vehicle? YES : Replace the gauge control module See «GAUGE CONTROL MODULE REMOVAL AND INSTALLATION»(ref-595382-S39482976312014013100000) or «Rewriting the ODO Data and Transferring the Maintenance Minder™ Data to a New Gauge Control Module»(ref-595382-S29459770492014013100000) . NO : Go to step 15.
15. VSA modulator-control unit check: 1. Turn the ignition switch to LOCK (0). 2. Reconnect the gauge control module 32P connector. 3. Disconnect the following connector. VSA modulator-control unit 38P connector 4. Turn the ignition switch to ON (II). Does the HDS identify the vehicle? YES : Replace the VSA modulator-control unit See «VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION»(ref-595411-S13354206342014013100000) , «VSA MODULATOR-CONTROL UNIT UPDATE»(ref-595411-S33795849562014013100000) or «VSA SENSOR NEUTRAL POSITION MEMORIZATION»(ref-595411-S26728862432014013100000) . NO : Go to step 16.
16. Steering angle sensor check: 1. Turn the ignition switch to LOCK (0). 2. Reconnect the VSA modulator-control unit 38P connector. 3. Disconnect the following connector. Steering angle sensor 4P connector 4. Turn the ignition switch to ON (II), and read the HDS. Does the HDS identify the vehicle? YES : «REPLACE THE STEERING ANGLE SENSOR»(ref-595416-S21284073902014013100000) . NO : Go to step 17.
17. EPS control unit check: 1. Turn the ignition switch to LOCK (0). 2. Reconnect the steering angle sensor 4P connector. 3. Disconnect the following connector. EPS control unit connector A (11P) 4. Turn the ignition switch to ON (II), and read the HDS. Does the HDS identify the vehicle? YES : Replace the EPS control unit See «EPS CONTROL UNIT REMOVAL AND INSTALLATION»(ref-595418-S31963372542014013100000) or «EPS CONTROL UNIT UPDATE»(ref-595418-S01069515502014013100000) . NO (with real time AWD) : Go to step 18. NO (without real time AWD) : Go to step 19 .
18. Real time AWD control unit check: 1. Turn the ignition switch to LOCK (0). 2. Reconnect EPS control unit connector A (11P). 3. Disconnect the following connector. Real time AWD control unit 24P connector 4. Turn the ignition switch to ON (II), and read the HDS. Does the HDS identify the vehicle? YES : Replace the real time AWD control unit See «REAL TIME AWD CONTROL UNIT REMOVAL AND INSTALLATION»(ref-595445-S18680977012014013100000) or «REAL TIME AWD CONTROL UNIT UPDATE»(ref-595445-S13601915922014013100000) . NO : Go to step 19.
19. SRS unit check: 1. Turn the ignition switch to LOCK (0). 2. Reconnect EPS control unit connector A (11P) or real time AWD control unit 24P connector. 3. Disconnect the following connector. SRS unit connector A (39P) 4. Turn the ignition switch to ON (II), and read the HDS. Does the HDS identify the vehicle? YES : Replace the SRS unit See «SRS UNIT REMOVAL AND INSTALLATION»(ref-595387-S33414986012014013100000) or «SRS UNIT UPDATE»(ref-595387-S09562272462014013100000) . NO (with navigation) : Go to step 20. NO (without navigation) : Go to step 21 .
20. Audio-navigation unit check: 1. Turn the ignition switch to LOCK (0). 2. Reconnect SRS unit connector A (39P). 3. Disconnect the following connector. Audio-navigation unit connector B (20P) 4. Turn the ignition switch to ON (II), and read the HDS. Does the HDS identify the vehicle? YES : REPLACE THE AUDIO-NAVIGATION UNIT . NO : Go to step 21.
21. TPMS control unit check: 1. Turn the ignition switch to LOCK (0). 2. Reconnect the audio-navigation unit connector B (20P). 3. Disconnect the following connector. TPMS control unit 20P connector 4. Turn the ignition switch to ON (II) and read the HDS. Does the HDS identify the vehicle? YES : «REPLACE THE TPMS CONTROL UNIT»(ref-595446-S06097970752014013100000) . NO : Update the PCM See «PCM REMOVAL AND INSTALLATION»(ref-595374-S31779448642014013100000) or «PCM UPDATE»(ref-595375-S42937672232014013100000) if it does not have the latest software, or substitute a known-good PCM See «PCM REMOVAL AND INSTALLATION»(ref-595374-S31779448642014013100000) or «PCM UPDATE»(ref-595375-S42937672232014013100000) , then recheck. If the HDS identifies the vehicle and the PCM was updated, troubleshooting is complete. If the HDS identifies the vehicle and the PCM was substituted, replace the original PCM See «PCM REMOVAL AND INSTALLATION»(ref-595374-S31779448642014013100000) or «PCM UPDATE»(ref-595375-S42937672232014013100000) .

Scheme 22

Network Communication DTC Troubleshooting Index

Note. Record all DTCs, and sort them by DTC type using the DTC troubleshooting index, then troubleshoot the DTC(s) in this order: Battery voltage DTCs Internal error DTCs Loss of communication DTCs Signal error DTCs

MICU

GAUGE CONTROL MODULE

CLIMATE CONTROL

AUTOMATIC LIGHTING/SUNLIGHT SENSOR

IMMOBILIZER-KEYLESS CONTROL UNIT

Entry Lights Control System (MICU) Input Test

Note. Refer to the Electrical Wiring Diagrams for the location of the under-dash fuse/relay box connectors. Before testing, make sure the No. A28 (7.5 A) and No. A29 (10 A) fuses in the under-hood fuse/relay box are OK. Before testing, make sure the No. B5 (10 A) fuse in the under-dash fuse/relay box is OK.

Scheme 23

Scheme 24

Scheme 25

Scheme 26

Scheme 27

Scheme 28

1. Turn the ignition switch to LOCK (0).
2. «DISCONNECT UNDER-DASH FUSE/RELAY BOX CONNECTORS B, D, N, P, W, AND X»(ref-595370-S18714513632014013100000) . NOTE: All connector views are shown from the wire side of the female terminals.
3. 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 are OK, go to step 4 .
4. With the connectors still disconnected, do 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 5 . Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained P12 LT GRN Under all conditions Connect terminal P12 and body ground with a jumper wire: The ignition key light should come on. Blown No. A28 (7.5 A) fuse in the under-hood fuse/relay box Faulty ignition key switch An open or high resistance in the wire W3 N6 PNK PUR Ceiling light switch in middle position and front individual map light switch in OFF position and interior light switch in DOOR position Connect terminal W3 to ground, and terminal N6 to ground with jumper wires: The ceiling light and front individual map lights should come on. Blown No. A28 (7.5 A) fuse in the under-hood fuse/relay box Blown bulb Faulty ceiling light Faulty front individual map lights Faulty interior light switch Faulty interior lights cut relay An open or high resistance in the wire
5. Reconnect the connectors to the under-dash fuse/relay box; do 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, the MICU must be faulty; «REPLACE THE UNDER-DASH FUSE/RELAY BOX»(ref-595370-S18714513632014013100000) . Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained W3 B39 PNK ORN Under all conditions Connect terminal W3 to ground, and terminal B39 to ground with jumper wires: The cargo area light should come on. Blown No. A28 (7.5 A) fuse in the under-hood fuse/relay box Blown bulb Faulty cargo area light Faulty interior lights cut relay Faulty under-dash fuse/relay box An open or high resistance in the wire D17 RED Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. A29 (10 A) fuse in the under-hood fuse/relay box An open or high resistance in the wire W6 BLK Under all conditions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G501) An open or high resistance in the ground wire B32 BLK Under all conditions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G604) An open or high resistance in the ground wire B20 BLK Under all conditions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G604) An open or high resistance in the ground wire D10 BLK Under all conditions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G402) An open or high resistance in the ground wire B40 GRN Driver's door open Measure the voltage to ground: There should be less than 0.2 V. Faulty driver's door switch Faulty driver's door switch ground An open or high resistance in the wire Driver's door closed Measure the voltage to ground: There should be about 5 V. Faulty driver's door switch A short to ground in the wire B29 BRN Front passenger's door open Measure the voltage to ground: There should be less than 0.2 V. Faulty front passenger's door switch Faulty front passenger's door switch ground An open or high resistance in the wire Front passenger's door closed Measure the voltage to ground: There should be about 5 V. Faulty front passenger's door switch A short to ground in the wire B33 WHT Left rear door open Measure the voltage to ground: There should be less than 0.2 V. Faulty left rear door switch Faulty left rear door switch ground An open or high resistance in the wire Left rear door closed Measure the voltage to ground: There should be about 5 V. Faulty left rear door switch A short to ground in the wire B34 GRY Right rear door open Measure the voltage to ground: There should be less than 0.2 V. Faulty right rear door switch Faulty right rear door switch ground An open or high resistance in the wire Right rear door closed Measure the voltage to ground: There should be about 5 V. Faulty right rear door switch An open or high resistance in the wire X5 LT GRN Driver's door lock knob switch in LOCK Measure the voltage to ground: There should be less than 0.2 V. Faulty driver's door lock knob switch Poor ground (G501) or an open in the ground wire An open or high resistance in the wire Driver's door lock knob switch in UNLOCK Measure the voltage to ground: There should be about 5 V. Faulty driver's door lock knob switch A short to ground in the wire X4 WHT Driver's door lock knob switch in UNLOCK Measure the voltage to ground: There should be less than 0.2 V. Faulty driver's door lock knob switch Poor ground (G501) or an open in the ground wire An open or high resistance in the wire Driver's door lock knob switch in LOCK Measure the voltage to ground: There should be about 5 V. Faulty driver's door lock knob switch A short to ground in the wire B22 PNK Tailgate open Measure the voltage to ground: There should be less than 0.2 V. Faulty tailgate latch switch Poor ground (G603) or an open in the ground wire An open or high resistance in the wire Tailgate closed Measure the voltage to ground: There should be about 5 V. Faulty tailgate latch switch A short to ground in the wire P11 GRY Ignition key inserted into the ignition key cylinder Measure the voltage to ground: There should be less than 0.2 V. Faulty ignition key switch Poor ground (G502) or an open in the ground wire An open or high resistance in the wire Ignition switch LOCK (0) position, and the ignition key removed from the ignition key cylinder Measure the voltage to ground: There should be about 5 V. Faulty ignition key switch A short to ground in the wire

Exterior Lights (MICU) Input Test

Note. Refer to the Electrical Wiring Diagrams for the location of the under-dash fuse/relay box connectors. Before testing, make sure the No. A16 (10 A), No. A24 (10 A), No. A25 (10 A), No. A26 (20 A), and No. A29 (10 A) fuses in the under-hood fuse/relay box are OK. Before testing, make sure the No. B5 (10 A), No. B34 (7.5 A), No. B38 (10 A), and No. B39 (10 A) fuses in the under-dash fuse/relay box are OK.

Scheme 29

Scheme 30

Scheme 31

Scheme 32

Scheme 33

Scheme 34

1. Turn the ignition switch to LOCK (0).
2. «DISCONNECT UNDER-DASH FUSE/RELAY BOX CONNECTORS B, C, D, P, T, AND W»(ref-595370-S18714513632014013100000) . NOTE: All connector views are shown from the wire side of the female terminals.
3. 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 are OK, go to step 4 .
4. With the connectors still disconnected, do 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 5 . Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained C19 C12 LT GRN PUR Connect terminal C19 and ground with a jumper wire Measure the voltage between terminal C12 and ground: There should be battery voltage. Faulty relay circuit board An open or high resistance in the wire D16 BLU Under all conditions Connect terminal to ground with a jumper wire: The headlights (low beam) should come on. Faulty relay circuit board Blown bulb Poor ground (G301) or an open in the ground wire An open or high resistance in the wire C18 C1 WHT ORN Under all conditions Connect terminals C18 and C1 with a jumper wire: The left headlight (high beam) should come on. Blown bulb Poor ground (G301) or an open in the ground wire An open or high resistance in the wire C14 C1 YEL ORN Under all conditions Connect terminals C14 and C1 with a jumper wire: The right headlight (high beam) should come on. Blown bulb Poor ground (G301) or an open in the ground wire An open or high resistance in the wire
5. Reconnect the connectors to the under-dash fuse/relay box, do 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, the MICU must be faulty; «REPLACE THE UNDER-DASH FUSE/RELAY BOX»(ref-595370-S18714513632014013100000) . Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained D17 RED Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. A29 (10 A) fuse in the under-hood fuse/relay box An open or high resistance in the wire C1 ORN Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. A2-4 (30 A) fuse in the under-hood fuse/relay box An open or high resistance in the wire W6 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G501) An open or high resistance in the ground wire B32 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G604) An open or high resistance in the ground wire B20 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G604) An open or high resistance in the ground wire D10 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G402) An open or high resistance in the ground wire P11 GRY Ignition key inserted into the ignition key cylinder Measure the voltage to ground: There should be less than 0.2 V. Faulty ignition key switch Poor ground (G502) or an open in the ground wire An open or high resistance in the wire Ignition switch LOCK (0) position, and the ignition key removed from the ignition key cylinder Measure the voltage to ground: There should be about 5 V. Faulty ignition key switch A short to ground in the wire T1 T5 ORN BLK Combination light switch OFF Measure the voltage between terminals T1 and T5: There should be less than 0.2 V. Faulty combination light switch An open or high resistance in the wire Combination light switch in any position other than OFF Measure the voltage between terminals T1 and T5: There should be about 5 V. Faulty combination light switch A short to ground in the wire T3 T5 BLU BLK Combination light switch (PARKING position) ON Measure the voltage between terminals T3 and T5: There should be less than 0.2 V. Faulty combination light switch An open or high resistance in the wire Combination light switch OFF Measure the voltage between terminals T3 and T5: There should be about 5 V. Faulty combination light switch A short to ground in the wire T2 T5 WHT BLK Combination light switch (headlight) ON Measure the voltage between terminals T2 and T5: There should be less than 0.2 V. Faulty combination light switch An open or high resistance in the wire Combination light switch OFF Measure the voltage between terminals T2 and T5: There should be about 5 V. Faulty combination light switch A short to ground in the wire T11 T5 RED BLK Combination light switch lever pulled (Passing) Measure the voltage between terminals T11 and T5: There should be less than 0.2 V. Faulty combination light switch An open or high resistance in the wire Combination light switch lever released (OFF) Measure the voltage between terminals T11 and T5: There should be about 5 V. Faulty combination light switch A short to ground in the wire T12 T5 LT BLU BLK Combination light switch (Dimmer) in high beam position Measure the voltage between terminals T12 and T5: There should be less than 0.2 V. Faulty combination light switch An open or high resistance in the wire Combination light switch (Dimmer) in low beam position Measure the voltage between terminals T12 and T5: There should be about 5 V. Faulty combination light switch A short to ground in the wire

Fog Lights (MICU) Input Test

Note. Refer to the Electrical Wiring Diagrams for the location of the under-dash fuse/relay box connectors. Before testing, make sure that there is no DTC and the combination light switch circuit is OK. Before testing, make sure the No. A12 (20 A) and No. A29 (10 A) fuses in the under-hood fuse/relay box are OK. Before testing, make sure the No. B5 (10 A) fuse in the under-dash fuse/relay box is OK.

Scheme 35

Scheme 36

Scheme 37

Scheme 38

1. Turn the ignition switch to LOCK (0).
2. «DISCONNECT UNDER-DASH FUSE/RELAY BOX CONNECTORS B, D, T, AND W»(ref-595370-S18714513632014013100000) . NOTE: All connector views are shown from the wire side of the female terminals.
3. 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 are OK, go to step 4 .
4. With the connector still disconnected, do 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 5 . Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained D25 LT GRN Under all conditions Connect terminal to ground with a jumper wire: The fog lights should come on. Blown No. A12 (20 A) fuse in the under-hood fuse/relay box Blown bulb(s) Faulty under-hood fuse/relay box Faulty fog light relay An open or high resistance in the wire
5. Reconnect the connectors to the under-dash fuse/relay box; do 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, the MICU must be faulty; «REPLACE THE UNDER-DASH FUSE/RELAY BOX»(ref-595370-S18714513632014013100000) . Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained D17 RED Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. A29 (10 A) fuse in the under-hood fuse/relay box An open or high resistance in the wire W6 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G501) An open or high resistance in the ground wire B32 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G604) An open or high resistance in the ground wire B20 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G604) An open or high resistance in the ground wire D10 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G402) An open or high resistance in the ground wire T4 T5 PUR BLK Fog light switch ON Measure the voltage between terminals T4 and T5: There should be less than 0.2 V. Faulty combination light switch An open or high resistance in the wire Fog light switch OFF Measure the voltage between terminals T4 and T5: There should be about 5 V. Faulty combination light switch A short to ground in the wire

Keyless/Power Door Locks/Security System (MICU) Input Test

Note. Refer to the Electrical Wiring Diagrams for the location of the under-dash fuse/relay box connectors. Before testing, make sure the No. A29 (10 A) fuse in the under-hood fuse/relay box is OK. Before testing, make sure the No. B5 (10 A), No. B8 (15 A), No. B9 (10 A), No. B15 (10 A), No. B30 (10 A), No. B32 (15 A), No. B33 (15 A), and No. B41 (20 A) fuses in the under-dash fuse/relay box are OK. Before testing, make sure the headlights, parking lights, side marker lights, taillights, and horn(s) all work properly. There are two pairs of fuses in the same circuit (No. B8 and No. B32 fuses, No. B9 and No. B33 fuses, and No. B15 and No. B30 fuses). If one fuse is blown, make sure to check the other fuse in the same circuit. If necessary, replace the blown fuse(s).

Scheme 39

Scheme 40

Scheme 41

Scheme 42

Scheme 43

Scheme 44

Scheme 45

Scheme 46

Scheme 47

1. Turn the ignition switch to LOCK (0).
2. «DISCONNECT UNDER-DASH FUSE/RELAY BOX CONNECTORS B, C, D, N, P, R, S, W, AND X»(ref-595370-S18714513632014013100000) . NOTE: All connector views are shown from the wire side of the female terminals.
3. 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 are OK, go to step 4 .
4. With the connectors still disconnected, do 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 5 . NOTE: These are door lock actuator operation tests for keyless entry. Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained N10 PNK Connect terminals D2 (1) and N10 (or N12), and terminal N12 (or N10) and ground with jumper wires. Check actuator operation: The driver's door lock actuator should LOCK (or UNLOCK). Faulty driver's door lock actuator An open or high resistance in the wire N12 GRY S3 RED Connect terminals D2 (1) and S3 (or S1), and terminal S1 (or S3) and ground with jumper wires. Check actuator operation: The front passenger's door lock actuator should LOCK (or UNLOCK). Faulty front passenger's door lock actuator An open or high resistance in the wire S1 YEL B16 PNK Connect terminals D2 (1) and B16 (or B11), and terminal B11 (or B16) and ground with jumper wires. Check actuator operation: The left rear door lock actuator should LOCK (or UNLOCK). Faulty left rear door lock actuator An open or high resistance in the wire B11 PUR B18 LT GRN Connect terminals D2 (1) and B18 (or B9), and terminal B9 (or B18) and ground with jumper wires. Check actuator operation: The right rear door lock actuator should LOCK (or UNLOCK). Faulty right rear door lock actuator An open or high resistance in the wire B9 YEL B7 YEL Connect terminals D2 (1) and B7 with a jumper wire momentarily. Check actuator operation: The tailgate release actuator should work. Faulty tailgate release actuator Poor ground (G603) or an open in the ground wire An open or high resistance in the wire (1) Use a fused jumper wire with an appropriate amperage fuse.
5. Reconnect the connectors to the under-dash fuse/relay box; do 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, the MICU must be faulty; «REPLACE THE UNDER-DASH FUSE/RELAY BOX»(ref-595370-S18714513632014013100000) . Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained D17 RED Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. A29 (10 A) fuse in the under-hood fuse/relay box An open or high resistance in the wire D2 BLU Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. A2-2 (60 A) fuse in the under-hood fuse/relay box An open or high resistance in the wire W6 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G501) An open or high resistance in the ground wire B32 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G604) An open or high resistance in the ground wire B20 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G604) An open or high resistance in the ground wire D10 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G402) An open or high resistance in the ground wire R7 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G501) An open or high resistance in the ground wire C27 (1) LT BLU Hood closed Measure the voltage to ground: There should be less than 0.2 V. Faulty security hood switch Poor ground (G402) or an open in the ground wire An open or high resistance in the wire Hood open Measure the voltage to ground: There should be about 5 V. Faulty security hood switch A short to ground in the wire B40 GRN Driver's door open Measure the voltage to ground: There should be less than 0.2 V. Faulty driver's door switch Faulty driver's door switch ground An open or high resistance in the wire Driver's door closed Measure the voltage to ground: There should be about 5 V. Faulty driver's door switch A short to ground in the wire B29 BRN Front passenger's door open Measure the voltage to ground: There should be less than 0.2 V. Faulty front passenger's door switch Faulty front passenger's door switch ground An open or high resistance in the wire Front passenger's door closed Measure the voltage to ground: There should be about 5 V. Faulty front passenger's door switch A short to ground in the wire B33 WHT Left rear door open Measure the voltage to ground: There should be less than 0.2 V. Faulty left rear door switch Faulty left rear door switch ground An open or high resistance in the wire Left rear door closed Measure the voltage to ground: There should be about 5 V. Faulty left rear door switch A short to ground in the wire B34 GRY Right rear door open Measure the voltage to ground: There should be less than 0.2 V. Faulty right rear door switch Faulty right rear door switch ground An open or high resistance in the wire Right rear door closed Measure the voltage to ground: There should be about 5 V. Faulty right rear door switch A short to ground in the wire X8 GRN Driver's door lock switch in LOCK Measure the voltage to ground: There should be less than 0.2 V. Faulty driver's door lock switch Poor ground (G501) or an open in the ground wire An open or high resistance in the wire Driver's door lock switch in neutral or UNLOCK Measure the voltage to ground: There should be about 5 V. Faulty driver's door lock switch A short to ground in the wire X7 GRY Driver's door lock switch in UNLOCK Measure the voltage to ground: There should be less than 0.2 V. Faulty driver's door lock switch Poor ground (G501) or an open in the ground wire An open or high resistance in the wire Driver's door lock switch in neutral or LOCK Measure the voltage to ground: There should be about 5 V. Faulty driver's door lock switch A short to ground in the wire X10 PNK Driver's door key cylinder switch in LOCK Measure the voltage to ground: There should be less than 0.2 V. Faulty driver's door key cylinder switch Poor ground (G501) or an open in the ground wire An open or high resistance in the wire Driver's door key cylinder switch in neutral or UNLOCK Measure the voltage to ground: There should be about 5 V. Faulty driver's door key cylinder switch A short to ground in the wire X9 BRN Driver's door key cylinder switch in UNLOCK Measure the voltage to ground: There should be less than 0.2 V. Faulty driver's door key cylinder switch Poor ground (G501) or an open in the ground wire An open or high resistance in the wire Driver's door key cylinder switch in neutral or LOCK Measure the voltage to ground: There should be about 5 V. Faulty driver's door key cylinder switch A short to ground in the wire W7 LT GRN Front passenger's door lock switch in LOCK Measure the voltage to ground: There should be less than 0.2 V. Faulty front passenger's door lock switch Poor ground (G503) or an open in the ground wire An open or high resistance in the wire Front passenger's door lock switch in neutral or UNLOCK Measure the voltage to ground: There should be about 5 V. Faulty front passenger's door lock switch A short to ground in the wire W8 ORN Front passenger's door lock switch in UNLOCK Measure the voltage to ground: There should be less than 0.2 V. Faulty front passenger's door lock switch Poor ground (G503) or an open in the ground wire An open or high resistance in the wire Front passenger's door lock switch in neutral or LOCK Measure the voltage to ground: There should be about 5 V. Faulty front passenger's door lock switch A short to ground in the wire X5 LT GRN Driver's door lock knob switch in LOCK Measure the voltage to ground: There should be less than 0.2 V. Faulty driver's door lock knob switch Poor ground (G501) or an open in the ground wire An open or high resistance in the wire Driver's door lock knob switch in UNLOCK Measure the voltage to ground: There should be about 5 V. Faulty driver's door lock knob switch A short to ground in the wire X4 WHT Driver's door lock knob switch in UNLOCK Measure the voltage to ground: There should be less than 0.2 V. Faulty driver's door lock knob switch Poor ground (G501) or an open in the ground wire An open or high resistance in the wire Driver's door lock knob switch in LOCK Measure the voltage to ground: There should be about 5 V. Faulty driver's door lock knob switch A short to ground in the wire W10 LT BLU Front passenger's door lock knob switch in UNLOCK Measure the voltage to ground: There should be less than 0.2 V. Faulty front passenger's door lock knob switch Poor ground (G503) or an open in the ground wire An open or high resistance in the wire Front passenger's door lock knob switch in LOCK Measure the voltage to ground: There should be about 5 V. Faulty front passenger's door lock knob switch A short to ground in the wire W5 BLU Left rear door lock knob switch in UNLOCK Measure the voltage to ground: There should be less than 0.2 V. Faulty left rear door lock knob switch Poor ground (G601) or an open in the ground wire An open or high resistance in the wire Left rear door lock knob switch in LOCK Measure the voltage to ground: There should be about 5 V. Faulty left rear door lock knob switch A short to ground in the wire W4 ORN Right rear door lock knob switch in UNLOCK Measure the voltage to ground: There should be less than 0.2 V. Faulty right rear door lock knob switch Poor ground (G604) or an open in the ground wire An open or high resistance in the wire Right rear door lock knob switch in LOCK Measure the voltage to ground: There should be about 5 V. Faulty right rear door lock knob switch A short to ground in the wire W23 LT GRN Tailgate outer handle switch pressed Measure the voltage to ground: There should be less than 0.2 V. Faulty tailgate outer handle switch Poor ground (G603) or an open in the ground wire An open or high resistance in the wire Tailgate outer handle switch released Measure the voltage to ground: There should be about 5 V. Faulty tailgate outer handle switch A short to ground in the wire B22 PNK Tailgate open Measure the voltage to ground: There should be less than 0.2 V. Faulty tailgate latch switch Poor ground (G603) or an open in the ground wire An open or high resistance in the wire Tailgate closed Measure the voltage to ground: There should be battery voltage. Faulty tailgate latch switch A short to ground in the wire D22 YEL Transmission range switch in P Measure the voltage to ground: There should be less than 0.2 V. Faulty or improperly adjusted transmission range switch Poor ground (G101) or an open in the ground wire An open or high resistance in the wire Transmission range switch in any other position than P Measure the voltage to ground: There should be about 5 V. A short to ground in the wire Faulty or improperly adjusted transmission range switch P11 GRY Ignition key inserted into the ignition key cylinder Measure the voltage to ground: There should be less than 0.2 V. Faulty ignition key switch Poor ground (G502) or an open in the ground wire An open or high resistance in the wire Ignition switch LOCK (0), and the ignition key removed from the ignition key cylinder Measure the voltage to ground: There should be about 5 V. Faulty ignition key switch A short to ground in the wire W9 (1) GRN Under all conditions Measure the voltage to ground: There should be less than 0.2 V. (2) Faulty audio unit or audio-navigation unit Poor ground (G503) or an open in the ground wire An open or high resistance in the wire (1) With security (2) If the factory-installed audio unit is removed from the vehicle, this voltage will be between 10-12 V.

MICU Input Test

Note. Refer to the Electrical Wiring Diagrams for the location of the under-dash fuse/relay box connectors. Before testing, check for DTCs. If any DTCs are indicated, troubleshoot those DTCs first.

Scheme 48

Scheme 49

Scheme 50

Scheme 51

Scheme 52

Scheme 53

Scheme 54

1. Turn the ignition switch to LOCK (0).
2. «DISCONNECT UNDER-DASH FUSE/RELAY BOX CONNECTORS B, D, K, M, P, Q, AND W»(ref-595370-S18714513632014013100000) . NOTE: All connector views are shown from the wire side of the female terminals.
3. 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 are OK, go to step 4 .
4. With the connectors still disconnected, do 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 5 . Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained K1 BLU Disconnect the immobilizer-keyless control unit 7P connector Check for continuity between terminal K1 and immobilizer-keyless control unit 7P connector terminal No. 5: There should be continuity. An open in the B-CAN wire K2 PNK Check for continuity between terminal K2 and immobilizer-keyless control unit 7P connector terminal No. 4: There should be continuity. K1 BLU Disconnect the gauge control module 32P connector Check for continuity between terminal K1 and gauge control module 32P connector terminal No. 31: There should be continuity. An open in the B-CAN wire K2 PNK Check for continuity between terminal K2 and gauge control module 32P connector terminal No. 30: There should be continuity. K1 (1) BLU Disconnect the climate control unit 32P connector Check for continuity between terminal K1 and climate control unit 32P connector terminal No. 15: There should be continuity. An open in the B-CAN wire K2 (1) PNK Check for continuity between terminal K2 and climate control unit 32P connector terminal No. 16: There should be continuity. K1 (2) BLU Disconnect the automatic lighting/sunlight sensor 7P connector Check for continuity between terminal K1 and automatic lighting/sunlight sensor 7P connector terminal No. 7: There should be continuity. An open in the B-CAN wire K2 (2) PNK Check for continuity between terminal K2 and automatic lighting/sunlight sensor 7P connector terminal No. 6: There should be continuity. K1 (3) BLU Disconnect audio-navigation unit connector E (16P) Check for continuity between terminal K1 and audio-navigation unit connector E (16P) terminal No. 9: There should be continuity. An open in the B-CAN wire K2 (3) PNK Check for continuity between terminal K2 and audio-navigation unit connector E (16P) terminal No. 1: There should be continuity. K1 (4) BLU Disconnect audio unit connector B (20P) Check for continuity between terminal K1 and audio unit connector B (20P) terminal No. 3: There should be continuity. An open in the B-CAN wire K2 (4) PNK Check for continuity between terminal K2 and audio unit connector B (20P) terminal No. 13: There should be continuity. K1 (5) BLU Disconnect the multi-information display unit connector A (32P) Check for continuity between terminal K1 and multi-information display unit connector A (32P) terminal No. 15: There should be continuity. An open in the B-CAN wire K1 (5) PNK Check for continuity between terminal K2 and multi-information display unit connector A (32P) terminal No. 31: There should be continuity. Q14 LT BLU Under all conditions Check for continuity between terminal Q14 and data link connector (DLC) terminal No. 7: There should be continuity. An open in the K-LINE wire (1) With climate control (2) With automatic lighting (3) With navigation (4) Without navigation (5) With multi-information display unit
5. Reconnect the connectors to the under-dash fuse/relay box; do 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, the MICU must be faulty; «REPLACE THE UNDER-DASH FUSE/RELAY BOX»(ref-595370-S18714513632014013100000) . NOTE: These are power and ground tests for the MICU. Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained D17 RED Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. A29 (10 A) fuse in the under-hood fuse/relay box An open or high resistance in the wire K7 RED Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. A29 (10 A) fuse in the under-hood fuse/relay box Faulty under-dash fuse relay box An open or high resistance in the wire M7 LT GRN Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. Blown No. B5 (10 A) fuse in the under-dash fuse/relay box An open or high resistance in the wire P18 BLU Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. Blown No. B4 (15 A) fuse in the under-dash fuse/relay box An open or high resistance in the wire Q2 PNK Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. Blown No. B22 (7.5 A) fuse in the under-dash fuse/relay box An open or high resistance in the wire Q9 RED Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. B25 (10 A) fuse in the under-dash fuse/relay box An open or high resistance in the wire Q16 RED Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. A29 (10 A) fuse in the under-hood fuse/relay box Faulty under-dash fuse relay box An open or high resistance in the wire B20 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G604) An open or high resistance in the ground wire B32 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G604) An open or high resistance in the ground wire D10 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G402) An open or high resistance in the ground wire W6 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G501) An open or high resistance in the ground wire

1. Shift to the sleep mode: Close all doors. Turn the ignition switch to LOCK (0), remove the key, then open and close the driver's door. If the MICU receives no signals from the inputs listed below, it will go into sleep mode in less than 40 seconds. IG1 power supply IG2 power supply B-CAN data Hazard warning switch (OFF)
2. Confirm sleep mode: NOTE: Check the official Honda service website for more service information about parasitic draw at the battery. Check the parasitic draw at the battery while entering sleep mode; amperage should change from about 200 mA to less than 35 mA in less than 40 seconds.
3. Shift to wake-up mode: When the ignition switch is turned to ON (II), the MICU, the gauge control module, the immobilizer-keyless control unit, and the PCM will wake-up at the same time without "talking" to each other through the communication lines. When any switch in the multiplex integrated control system is turned on, it wakes up its related control unit which, in turn, wakes up the other units. After confirming the system is in sleep mode, look in the following list for the switch most related to the problem. Operate that switch and see if its control unit wakes up. NOTE: If any control unit is faulty and does not wake up, several circuits in the system malfunction at the same time. Below is a list of the switches and input signals that wake them up. IG1 power supply IG2 power supply ACC power supply B-CAN data Driver's door switch (Open) Left rear door switch (Open) Tailgate latch switch (Open) Tailgate outer handle switch (Open) Left rear door lock knob switch (UNLOCK) Security hood switch (Open) Hazard warning switch (ON) Combination light switch (Parking, Headlight, Dimmer, Passing, Fog ON) Ignition key switch (Key inserted) Driver's door key cylinder switch (LOCK/UNLOCK) Driver's door lock knob switch (LOCK/UNLOCK) Right rear door lock knob switch (UNLOCK) Front passenger's door lock knob switch (UNLOCK) Driver's door lock switch (LOCK/UNLOCK) Front passenger's door lock switch (LOCK/UNLOCK) Front passenger's door switch (Open) Right rear door switch (Open) Audio security switch (ON)

Turn Signal/Hazard Warning Lights (MICU) Input Test

Note. Refer to the Electrical Wiring Diagrams for the location of the under-dash fuse/relay box connectors. Before testing, make sure the No. A15 (10 A) and No. A29 (10 A) fuses in the under-hood fuse/relay box are OK. Before testing, make sure the No. B5 (10 A) fuse in the under-dash fuse/relay box is OK.

Scheme 55

Scheme 56

Scheme 57

Scheme 58

Scheme 59

Scheme 60

Scheme 61

1. Turn the ignition switch to LOCK (0).
2. «DISCONNECT UNDER-DASH FUSE/RELAY BOX CONNECTORS B, C, D, M, R, T, AND W»(ref-595370-S18714513632014013100000) . NOTE: All connector views are shown from the wire side of the female terminals.
3. 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 are OK, go to step 4 .
4. With the connectors still disconnected, do 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 5 . Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained M6 BRN Connect terminals M6 and D6 with a jumper wire Check the turn signal lights operation: The left turn signal indicator should come on. Faulty gauge control module An open or high resistance in the wire M5 GRN Connect terminals M5 and D6 with a jumper wire Check the turn signal lights operation: The right turn signal indicator should come on. Faulty gauge control module An open or high resistance in the wire C11 BRN Connect terminals C11 and D6 with a jumper wire Check the turn signal lights operation: The left front turn signal light should come on. Blown bulb Poor ground (G301) or an open in the ground wire An open or high resistance in the wire C7 GRN Connect terminals C7 and D6 with a jumper wire Check the turn signal lights operation: The right front turn signal light should come on. Blown bulb Poor ground (G301) or an open in the ground wire An open or high resistance in the wire B4 PUR Connect terminals B4 and D6 with a jumper wire Check the turn signal lights operation: The left rear turn signal light should come on. Blown bulb Poor ground (G603) or an open in the ground wire An open or high resistance in the wire B12 GRN Connect terminals B12 and D6 with a jumper wire Check the turn signal lights operation: The right rear turn signal light should come on. Blown bulb Poor ground (G604) or an open in the ground wire An open or high resistance in the wire
5. Reconnect the connectors to the under-dash fuse/relay box, do 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, the MICU must be faulty; «REPLACE THE UNDER-DASH FUSE/RELAY BOX»(ref-595370-S18714513632014013100000) . Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained D17 RED Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. A29 (10 A) fuse in the under-hood fuse/relay box An open or high resistance in the wire D6 YEL Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. A15 (10 A) fuse in the under-hood fuse/relay box An open or high resistance in the wire W6 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G501) An open or high resistance in the ground wire B32 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G604) An open or high resistance in the ground wire B20 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G604) An open or high resistance in the ground wire D10 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G402) An open or high resistance in the ground wire R1 YEL Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. A15 (10 A) fuse in the under-hood fuse box Faulty under-dash fuse/relay box An open or high resistance in the ground wire R3 GRN Hazard warning switch pressed Measure the voltage to ground: There should be battery voltage. Faulty hazard warning switch An open or high resistance in the ground wire T14 T5 YEL BLK Turn signal switch in left position Measure the voltage between terminals T14 and T5: There should be less than 0.2 V. Faulty turn signal switch An open or high resistance in the wire Turn signal switch in right or neutral position Measure the voltage between terminals T14 and T5: There should be about 5 V. Faulty turn signal switch A short to ground in the wire T13 T5 LT GRN BLK Turn signal switch in right position Measure the voltage between terminals T13 and T5: There should be less than 0.2 V. Faulty turn signal switch An open or high resistance in the ground wire Turn signal switch in left or neutral position Measure the voltage between terminals T13 and T5: There should be about 5 V. Faulty turn signal switch A short to ground in the wire

Wipers/Washers (MICU) Input Test

Note. Refer to the Electrical Wiring Diagrams for the location of the under-dash fuse/relay box connectors. Before testing, make sure the No. A2-9 (30 A) fuse in the under-hood fuse/relay box is OK. Before testing, make sure the No. B5 (10 A), No. B23 (10 A), and No. B28 (15 A) fuses in the under-dash fuse/relay box are OK.

Scheme 62

Scheme 63

Scheme 64

Scheme 65

Scheme 66

Scheme 67

Scheme 68

1. Turn the ignition switch to LOCK (0).
2. «DISCONNECT UNDER-DASH FUSE/RELAY BOX CONNECTORS B, C, D, P, R, T, AND W»(ref-595370-S18714513632014013100000) . NOTE: All connector views are shown from the wire side of the female terminals.
3. 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 are OK, go to step 4 .
4. With the connectors still disconnected, do 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 5 . Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained P9 C22 LT BLU WHT Under all conditions Connect terminals D4 and P9, and terminal C22 to body ground with jumper wires: The windshield wiper motor should run at high speed. Blown No. A2-9 (30 A) fuse in the under-hood fuse/relay box Faulty relay circuit board Faulty windshield wiper motor Poor ground (G302) or an open in the ground wire An open or high resistance in the wire T6 (1) T15 BLU BLK Windshield wiper/washer switch (Intermittent dwell time controller) turned ON. Measure the resistance between terminals T6 and T15: The resistance should vary between 0 to 1 kohms. Faulty windshield wiper/washer switch An open or high resistance in the ground wire A short to ground in the wire C32 BLU Run the windshield wiper motor by connecting terminals D4 and P9, and terminal C22 and body ground with jumper wires. Connect terminal C32 to body ground with a jumper wire: The windshield wiper motor speed should change from high speed to low speed. Faulty windshield wiper motor Faulty relay circuit board An open or high resistance in the wire C15 C6 ORN PNK Under all conditions Connect terminals C15 and D4, and terminal C6 to body ground with jumper wires: The windshield/rear window washer motor should run. Faulty windshield/rear window washer motor An open or high resistance in the wire C23 GRY Run the windshield wiper motor by connecting terminals D4 and P9, and terminal C22 and body ground with jumper wires. Use a DVOM to check for continuity to ground. NOTE: There is no needle on a DVOM. Faulty windshield wiper motor An open or high resistance in the wire P9 T20 LT BLU BRN Under all conditions Connect terminals D4 and P9, and terminal T20 to body ground with jumper wires: The rear window wiper motor should run. Faulty rear window wiper motor An open or high resistance in the wire (1) With intermittent dwell time controller
5. Reconnect the connectors to the under-dash fuse/relay box, and do 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, the MICU must be faulty; «REPLACE THE UNDER-DASH FUSE/RELAY BOX»(ref-595370-S18714513632014013100000) . Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained W6 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G501) An open or high resistance in the ground wire D10 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G402) An open or high resistance in the ground wire B32 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G604) An open or high resistance in the ground wire B20 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G604) An open or high resistance in the ground wire R7 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G501) An open or high resistance in the ground wire C16 BLU Brake pedal pressed Measure the voltage to ground: There should be battery voltage. Blown No. A16 (10 A) fuse in the under-hood fuse/relay box Faulty brake pedal position switch An open or high resistance in the wire Brake pedal released Measure the voltage to ground: There should be no voltage. Faulty brake pedal position switch A short to power in the wire T16 T15 ORN BLK Windshield wiper/washer switch (INT or LO) ON Measure the voltage to ground: There should be less than 0.2 V. Faulty windshield wiper/washer switch An open or high resistance in the wire Windshield wiper/washer switch OFF Measure the voltage to ground: There should be about 5 V. Faulty windshield wiper/washer switch A short to ground in the wire T18 T15 GRN BLK Windshield wiper/washer switch (MIST) ON Measure the voltage to ground: There should be less than 0.2 V. Faulty windshield wiper/washer switch An open or high resistance in the wire Windshield wiper/washer switch OFF Measure the voltage to ground: There should be about 5 V. Faulty windshield wiper/washer switch A short to ground in the wire T17 T15 WHT BLK Windshield wiper/washer switch (LO or HI) ON Measure the voltage to ground: There should be less than 0.2 V. Faulty windshield wiper/washer switch An open or high resistance in the wire Windshield wiper/washer switch OFF Measure the voltage to ground: There should be about 5 V. Faulty windshield wiper/washer switch A short to ground in the wire T19 T15 YEL BLK Windshield washer switch ON Measure the voltage to ground: There should be less than 0.2 V. Faulty windshield wiper/washer switch An open or high resistance in the wire Windshield washer switch OFF Measure the voltage to ground: There should be about 5 V. Faulty windshield wiper/washer switch A short to ground in the wire T10 T15 PNK BLK Rear window wiper switch ON Measure the voltage to ground: There should be less than 0.2 V. Faulty rear window wiper/washer switch An open or high resistance in the wire Rear window wiper switch OFF Measure the voltage to ground: There should be about 5 V. Faulty rear window wiper/washer switch A short to ground in the wire T9 T15 LT BLU BLK Rear window wiper switch INT Measure the voltage to ground: There should be less than 0.2 V. Faulty rear window wiper/washer switch An open or high resistance in the wire Rear window wiper switch OFF Measure the voltage to ground: There should be about 5 V. Faulty rear window wiper/washer switch A short to ground in the wire T8 T15 GRY BLK Rear window washer switch ON Measure the voltage to ground: There should be less than 0.2 V. Faulty rear window wiper/washer switch An open or high resistance in the wire Rear window washer switch OFF Measure the voltage to ground: There should be about 5 V. Faulty rear window wiper/washer switch A short to ground in the wire D22 YEL Transmission range switch in P Measure the voltage to ground: There should be less than 0.2 V. Faulty or improperly adjusted transmission range switch Poor ground (G101) or an open in the ground wire An open or high resistance in the wire Transmission range switch in any other position than P Measure the voltage to ground: There should be about 5 V. Faulty or improperly adjusted transmission range switch A short to ground in the wire

See also:
• B1002
• B-CAN SYSTEM DIAGNOSIS TEST MODE B
• MICU
• SLEEP AND WAKE-UP MODE TEST