Multiplex Integrated Control System: Diagnosis Honda Civic IX

Automatic Lighting Control Unit Input Test

Note. Before testing, check for DTCs. If any DTCs are indicated, troubleshoot the indicated DTCs first. Before testing, make sure the No. A29 (10 A) fuse in the under-hood fuse/relay box is OK.

Scheme 31

1. Turn the ignition switch to LOCK (0).
2. «DISCONNECT THE AUTOMATIC LIGHTING CONTROL UNIT 14P CONNECTOR»(ref-614129-S20356584962014050700000) .
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 2 WHT Disconnect the automatic lighting/sunlight sensor 5P connector Check for continuity between terminal No. 2 and automatic lighting/sunlight sensor 5P connector terminal No. 5: There should be continuity. An open or high resistance in the wire 1 RED Disconnect the automatic lighting/sunlight sensor 5P connector Check for continuity between terminal No. 1 and automatic lighting/sunlight sensor 5P connector terminal No. 3: There should be continuity. An open or high resistance in the wire 7 BRN Disconnect the automatic lighting/sunlight sensor 5P connector Check for continuity between terminal No. 7 and automatic lighting/sunlight sensor 5P connector terminal No. 1: There should be continuity. An open or high resistance in the wire
5. Reconnect the connector to the automatic lighting control unit, 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, «REPLACE THE AUTOMATIC LIGHTING CONTROL UNIT»(ref-614129-S20356584962014050700000) . Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained 12 WHT 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 14 BRN Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. Blown No. B5 (7.5 A) fuse in the under-dash fuse/relay box Faulty under-dash fuse/relay box An open or high resistance in the wire 9 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G504) An open or high resistance in the ground wire 10 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G504) An open or high resistance in the ground wire 6 PNK Under all conditions Check for continuity between terminal No. 6 and combination light switch 12P connector terminal No. 7: There should be continuity. An open or high resistance in the wire

Console Accessory Power Socket Test

Note. If the front and console accessory power sockets do not work, check the No. B19 (7.5 A) fuse in the under-dash fuse/relay box first.

Scheme 32

1. Remove the «CENTER CONSOLE REAR TRIM»(ref-614099-S14556002062014050700000) .
2. Disconnect the 2P connector from the console accessory power socket.
3. Inspect the connector 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 5 .
4. Turn the ignition switch to ACCESSORY (I).
5. Measure the voltage between under-dash relay holder A terminal No. 8 and body ground. There should be less than 0.2 V. If there is less than 0.2 V, go to step 6. If there is more than 0.2 V, check for: An open or high resistance in the ground wire between under-dash relay holder A terminal No. 8 and ground (G503). Poor ground (G503).
6. Measure the voltage between console accessory power socket 2P connector terminal No. 2 and body ground. There should be battery voltage. If there is battery voltage, go to step 7. If there is no voltage, check for: Blown No. B12 (15 A) fuse in the under-dash fuse/relay box. Faulty console accessory power socket relay. Faulty under-dash fuse/relay box. An open or high resistance in the wire between console accessory power socket 2P connector terminal No. 2 and under-dash fuse/relay box connector S (10P) terminal No. 7.
7. Check for continuity between console accessory power socket 2P connector No. 1 and body ground. There should be continuity. If there is continuity, replace the console accessory power socket. If there is no continuity, check for: Poor ground (G601). An open or high resistance in the ground wire between console accessory power socket 2P connector terminal No. 1 and ground (G601).

Cruise Control (ECM/PCM) Input Test

Note. Always make sure that you have the latest HDS software.

1. Connect the HDS to the DLC; «How to Troubleshoot the A/T System»(ref-614091-S31453792442014050700000) , except K24Z7 engine How to Troubleshoot the Fuel and Emissions Systems (R18A9) or How to Troubleshoot the Fuel and Emissions Systems (R18Z1) , K24Z7 engine How to Troubleshoot the Fuel and Emissions Systems (K24Z7) .
2. Turn the ignition switch to ON (II).
3. Make sure the HDS communicates with the vehicle and the ECM/PCM. If it does not communicate, troubleshoot the DLC circuit; except K24Z7 engine See DLC CIRCUIT TROUBLESHOOTING (EXCEPT K24Z7) or DLC CIRCUIT TROUBLESHOOTING (K24Z7) , K24Z7 engine See DLC CIRCUIT TROUBLESHOOTING (EXCEPT K24Z7) or DLC CIRCUIT TROUBLESHOOTING (K24Z7) .
4. Check for and troubleshoot any DTCs; «How to Troubleshoot the A/T System»(ref-614091-S31453792442014050700000) , except K24Z7 engine How to Troubleshoot the Fuel and Emissions Systems (R18A9) or How to Troubleshoot the Fuel and Emissions Systems (R18Z1) , K24Z7 engine How to Troubleshoot the Fuel and Emissions Systems (K24Z7) .
5. Do the following tests while monitoring parameters in the PGM-FI DATA LIST with the HDS.
6. If the input tests prove OK, replace the ECM/PCM; EXCEPT K24Z7 ENGINE , K24Z7 ENGINE . NOTE: Intermittent failures are often caused by loose circuit connections. While monitoring cruise control inputs, flex the circuit wires, and note if any of the test results change. Signal to be tested Test condition Parameter: Desired result Possible cause if result is not obtained Cruise control system switch status Cruise control switch buttons are not pressed. The CRUISE CONTROL SYSTEM SWITCH STATUS in the HDS Datalist should indicate DEFAULT when the Cruise Control switch buttons are not pressed. If the CRUISE CONTROL SYSTEM SWITCH STATUS in the HDS Datalist indicates SIGNAL LOST, check as shown. Check for DTCs in the PGM-FI system and do the appropriate troubleshooting. Faulty gauge control module (tach) Faulty cruise control combination switch An open in the wire between the gauge control module (tach) and the cruise control combination switch A short to power in the wire between the gauge control module (tach) and the cruise control combination switch when the illumination switch is turned on. If the CRUISE CONTROL SYSTEM SWITCH STATUS in the HDS Datalist indicates SIGNAL SHORT, check as shown. Check for DTCs in the PGM-FI system and do the appropriate troubleshooting. Check for DTCs in the PGM-FI system and do the appropriate troubleshooting. Faulty cruise control combination switch A short to ground in the wire between the gauge control module (tach) and the cruise control combination switch If the CRUISE CONTROL SYSTEM SWITCH STATUS in the HDS Datalist indicates a different status, check for a faulty cruise control combination switch. Cruise control MAIN switch button is pressed. The CRUISE CONTROL SYSTEM SWITCH STATUS in the HDS Datalist should indicate MAIN SW when the MAIN switch button is pressed. Cruise control CANCEL switch button is pressed. The CRUISE CONTROL SYSTEM SWITCH STATUS in the HDS Datalist should indicate CANCEL SW when the CANCEL switch button is pressed. The cruise control SET switch is pressed. The CRUISE CONTROL SYSTEM SWITCH STATUS in the HDS Datalist should indicate SET SW when the SET switch button is pressed. The cruise control RESUME switch is pressed. The CRUISE CONTROL SYSTEM SWITCH STATUS in the HDS Datalist should indicate RESUME SW when the RESUME switch button is pressed.

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, and the No. B5 (7.5 A) fuse in the under-dash fuse/relay box are OK.

Scheme 33

1. Turn the ignition switch to LOCK (0).
2. Disconnect under-dash fuse/relay box connectors A, B, D, N, P, W, and X. See «Removal and Installation (KA model with Keyless Access System)»(ref-614103-S25481539492014050700000) , «Removal and Installation (KA KX models without Keyless Access System)»(ref-614103-S30620497412014050700000) , «Removal and Installation (KC models without Keyless Access System)»(ref-614103-S15264253742014053000000) or «Removal and Installation (KC model with Keyless Access System)»(ref-614103-S40084232992014053000000) NOTE: All connector views are shown from wire side of 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 P7 . P12 LT BLU . LT GRN Under all conditions Connect terminals P7 and D18, and terminal P12 and body ground with jumper wires: 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 N6 PNK Ceiling light switch in middle position (and front individual map light switch in ON position and interior light switch in DOOR position) (1) Connect terminals D18 and N13, and terminal N6 and ground with jumper wires: The ceiling light (and front individual map lights) (1) should come on. Blown bulb Faulty ceiling light Faulty front individual map lights (1) An open or high resistance in the wire (1) With moonroof
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. See «Under-Dash Fuse/Relay Box Removal and Installation (KA model with Keyless Access System)»(ref-614103-S25481539492014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KA KX models without Keyless Access System)»(ref-614103-S30620497412014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KC models without Keyless Access System)»(ref-614103-S15264253742014053000000) or «Under-Dash Fuse/Relay Box Removal and Installation (KC model with Keyless Access System)»(ref-614103-S40084232992014053000000) Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained A3 BLU Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. An open or high resistance in the wire D28 WHT 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 D18 LT BLU Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. A28 (7.5 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 (G602) 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 LT GRN 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 BRN 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 Check for continuity to ground: There should be continuity. 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 (G502) 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 (G502) 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 BLU Trunk lid open Measure the voltage to ground: There should be less than 0.2 V. Faulty trunk lid latch switch Poor ground (G701) or an open in the ground wire An open or high resistance in the wire Trunk lid closed Measure the voltage to ground: There should be battery voltage. Faulty trunk lid latch switch A short to ground in the wire P11 BRN 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 (G503) 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. A4 (10 A), No. A6 (10 A), No. A23 (10 A), No. A27 (20 A), and No. A29 (10 A) fuses in the under-hood fuse/relay box and the No. B5 (7.5 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 34

1. Turn the ignition switch to LOCK (0).
2. Disconnect under-dash fuse/relay box connectors A, B, C, D, P, T, and W. See «Under-Dash Fuse/Relay Box Removal and Installation (KA model with Keyless Access System)»(ref-614103-S25481539492014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KA KX models without Keyless Access System)»(ref-614103-S30620497412014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KC models without Keyless Access System)»(ref-614103-S15264253742014053000000) or «Under-Dash Fuse/Relay Box Removal and Installation (KC model with Keyless Access System)»(ref-614103-S40084232992014053000000) NOTE: All connector views are shown from wire side of 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 ORN . YEL Connect terminal C19 and ground with a jumper wire Measure the voltage between terminal C12 and ground: There should be battery voltage. Faulty taillight relay An open or high resistance in the wire D29 ORN Under all conditions Connect terminal to ground with a jumper wire: The headlights (low beam) should come on. Faulty headlight low beam relay Blown bulb Poor ground (G201, G301) or an open in the ground wire An open or high resistance in the wire C18 . C1 PNK . WHT 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 WHT . WHT Under all conditions Connect terminals C14 and C1 with a jumper wire: The right headlight (high beam) should come on. Blown bulb Poor ground (G201) or an open in the ground wire An open or high resistance in the wire P11 BRN Ignition key inserted into the ignition key cylinder Check for continuity to ground: There should be continuity. Faulty ignition key switch Poor ground (G503) 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 Check for continuity to ground: There should be no continuity. Faulty ignition key switch A short to ground 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. See «Under-Dash Fuse/Relay Box Removal and Installation (KA model with Keyless Access System)»(ref-614103-S25481539492014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KA KX models without Keyless Access System)»(ref-614103-S30620497412014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KC models without Keyless Access System)»(ref-614103-S15264253742014053000000) or «Under-Dash Fuse/Relay Box Removal and Installation (KC model with Keyless Access System)»(ref-614103-S40084232992014053000000) Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained A3 BLU Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. An open or high resistance in the wire D28 WHT 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 WHT 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 (G602) An open or high resistance in the ground wire P11 BRN 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 (G503) 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 other position than OFF Measure the voltage between terminals T1 and T5: There should be about 5 V. Faulty combination light switch A short in the wire T3 . T5 GRY . BLK Combination light switch (PARKING position) ON or AUTO 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 in the wire T2 . T5 PNK . 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 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 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 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, and the No. B5 (7.5 A) fuse in the under-dash fuse/relay box are OK.

Scheme 35

1. Turn the ignition switch to LOCK (0).
2. Disconnect under-dash fuse/relay box connectors A, B, D, T, and W. See «Under-Dash Fuse/Relay Box Removal and Installation (KA model with Keyless Access System)»(ref-614103-S25481539492014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KA KX models without Keyless Access System)»(ref-614103-S30620497412014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KC models without Keyless Access System)»(ref-614103-S15264253742014053000000) or «Under-Dash Fuse/Relay Box Removal and Installation (KC model with Keyless Access System)»(ref-614103-S40084232992014053000000) NOTE: All connector views are shown from wire side of 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 D20 BLU Under all conditions Connect terminal D20 and ground with a jumper wire: The fog lights should come on. Blown No. A29 (10 A) fuse in the under-hood fuse/relay box Blown bulb(s) Faulty under-hood fuse/relay box Faulty front 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. See «Under-Dash Fuse/Relay Box Removal and Installation (KA model with Keyless Access System)»(ref-614103-S25481539492014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KA KX models without Keyless Access System)»(ref-614103-S30620497412014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KC models without Keyless Access System)»(ref-614103-S15264253742014053000000) or «Under-Dash Fuse/Relay Box Removal and Installation (KC model with Keyless Access System)»(ref-614103-S40084232992014053000000) Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained A3 BLU Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. An open or high resistance in the wire D28 WHT 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 (G602) 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 about 5 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 less than 0.2 V. Faulty combination light switch A short in the wire

Front Accessory Power Socket Test

Note. Check the No. B19 (7.5 A) fuse in the under-dash fuse/relay box first.

Scheme 36

1. Remove the «DASHBOARD CENTER LOWER PANEL»(ref-614099-S25714662062014050700000) .
2. Disconnect the 2P connector from the front accessory power socket.
3. Inspect the connector 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 6 .
4. Turn the ignition switch to ACCESSORY (I).
5. Disconnect under-dash fuse relay box connector R (8P) and P(20P).
6. Measure the voltage between under-dash fuse/relay box connector R (8P) terminal No. 7 (or under-dash fuse/relay box connector P (20P) terminal No. 20) and body ground. There should be less than 0.2 V. If there is less than 0.2 V, go to step 7. If there is more than 0.2 V, check for: An open or high resistance in the ground wire between under-dash fuse/relay box connector R (8P) No. 7 (or under-dash fuse/relay box connector P (20P) terminal No. 20) and ground (G502). Poor ground (G502).
7. Measure the voltage between front accessory power socket 2P connector No. 2 and body ground. There should be battery voltage. If there is battery voltage, go to step 8. If there is no voltage, check for: Blown No. B27 (15 A) fuse in the under-dash fuse/relay box. Faulty front accessory power socket. Faulty under-dash fuse/relay box. An open or high resistance in the wire between front accessory power socket 2P connector No. 2 and under-dash fuse/relay box connector N (13P) No. 2.
8. Check for continuity between front accessory power socket 2P connector No. 1 and body ground. There should be continuity. If there is continuity, replace the front accessory power socket. If there is no continuity, check for: Poor ground (G504). An open or high resistance in the ground wire between front accessory power socket 2P connector No. 1 and ground (G504).

Scheme 37

Scheme 38

Scheme 39

1. Remove the front passenger's power window switch See «FRONT PASSENGER'S POWER WINDOW SWITCH REMOVAL AND INSTALLATION (2-DOOR)»(ref-614120-S18897902562014050700000) , «FRONT PASSENGER'S POWER WINDOW SWITCH REMOVAL AND INSTALLATION (4-DOOR)»(ref-614120-S20141230052014050700000) or «REAR POWER WINDOW SWITCH REMOVAL AND INSTALLATION»(ref-614120-S09105112432014050700000) .
2. Test the motor in each direction by connecting battery power and ground to the front passenger's power window switch 10P connector according to the table.
3. If the motor does not run or fails to run smoothly, go to step 4.
4. For 4-door: Remove the door panel See «FRONT DOOR PANEL REMOVAL AND INSTALLATION (2-DOOR)»(ref-614126-S00453222102014050700000) or «FRONT DOOR PANEL REMOVAL AND INSTALLATION (4-DOOR)»(ref-614126-S09999868332014050700000) .
5. Disconnect the 2P connector from the front passenger's power window motor.
6. Check for continuity between the front passenger's power window switch 10P connector terminals and front passenger's power window motor 2P connector terminals as shown. There should be continuity. Front passenger's power window switch 10P connector Front passenger's power window motor 2P connector 10 1 8 2
7. If there is no continuity, repair an open or high resistance in the wire(s). If the wire harness is OK, replace the front passenger's power window motor See «FRONT POWER WINDOW MOTOR REMOVAL AND INSTALLATION (2-DOOR)»(ref-614100-S33032764402014050700000) or «FRONT POWER WINDOW MOTOR REMOVAL AND INSTALLATION (4-DOOR)»(ref-614100-S35239262952014050700000) .

Gauge Control Module (Speedo) Input Test

Note. Before testing, DO THE GAUGE CONTROL MODULE SELF-DIAGNOSTIC FUNCTION , and make sure the B-CAN communication lines and the UART line are OK. Before testing, make sure the No. A29 (10 A) fuse in the under-hood fuse/relay box and No. B5 (7.5 A) fuse in the under-dash fuse/relay box are OK.

Scheme 40

1. Turn the ignition switch to LOCK (0).
2. Disconnect the gauge control module (speedo) 12P connector See «GAUGE CONTROL MODULE (SPEEDO) REMOVAL AND INSTALLATION»(ref-614110-S22536531082014050700000) , «GAUGE CONTROL MODULE (TACH) REMOVAL AND INSTALLATION»(ref-614110-S24253527182014050700000) or «REWRITING THE ODO DATA AND TRANSFERRING THE MAINTENANCE MINDER™ DATA TO A NEW GAUGE CONTROL MODULE»(ref-614119-S22749513832014050700000) .
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 3 GRY Disconnect the gauge control module (tach) 32P connector Check for continuity between terminal No. 3 and gauge control module (tach) 32P connector terminal No. 25: There should be continuity. An open in the UART wire Check for continuity to ground: There should be no continuity. A short to ground in the UART wire
5. Reconnect the connector to the gauge control nodule (speedo), 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, replace the gauge control module (speedo) See «GAUGE CONTROL MODULE (SPEEDO) REMOVAL AND INSTALLATION»(ref-614110-S22536531082014050700000) , «GAUGE CONTROL MODULE (TACH) REMOVAL AND INSTALLATION»(ref-614110-S24253527182014050700000) or «REWRITING THE ODO DATA AND TRANSFERRING THE MAINTENANCE MINDER™ DATA TO A NEW GAUGE CONTROL MODULE»(ref-614119-S22749513832014050700000) . Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained 1 WHT 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 7 BRN Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. Blown No. B5 (7.5 A) fuse in the under-dash fuse/relay box An open or high resistance in the wire 4 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G503) An open or high resistance in the ground wire 6 BRN Ignition switch ON (II), turn signal switch in RIGHT Measure the voltage to ground: There should be battery voltage when the lights are flashing. Faulty MICU Faulty combination light switch An open or high resistance in the wire 11 BLU Ignition switch ON (II), turn signal switch in LEFT Measure the voltage to ground: There should be battery voltage when the lights are flashing. Faulty MICU Faulty combination light switch An open or high resistance in the wire

Gauge Control Module (Tach) Input Test

Note. Before testing, DO THE GAUGE CONTROL MODULE SELF-DIAGNOSTIC FUNCTION , and make sure the B-CAN communication lines and the UART line are OK. Before testing, make sure the No. A29 (10 A) fuse in the under-hood fuse/relay box and No. B5 (7.5 A) fuse in the under-dash fuse/relay box are OK.

Scheme 41

1. Turn the ignition switch to LOCK (0).
2. Disconnect the gauge control module (tach) 32P connector See «GAUGE CONTROL MODULE (SPEEDO) REMOVAL AND INSTALLATION»(ref-614110-S22536531082014050700000) , «GAUGE CONTROL MODULE (TACH) REMOVAL AND INSTALLATION»(ref-614110-S24253527182014050700000) or «REWRITING THE ODO DATA AND TRANSFERRING THE MAINTENANCE MINDER™ DATA TO A NEW GAUGE CONTROL MODULE»(ref-614119-S22749513832014050700000) .
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 15 BLU Combination light switch ON Connect to ground with a jumper wire: The dashlights should come on full bright. Faulty LEDs An open or high resistance in the wire 16 RED Combination light switch ON Connect to ground with a jumper wire: The dashlights should come on full bright. Faulty bulbs An open or high resistance in the wire 24 (1) RED Disconnect the outside air temperature sensor 2P connector Check for continuity between terminal No. 24 and outside air temperature sensor 2P connector terminal No. 2: There should be continuity. An open or high resistance in the wire Check for continuity between terminal No. 24 and body ground: There should be no continuity. A short to ground in the wire 8 (1) BLU Disconnect the outside air temperature sensor 2P connector Check for continuity between terminal No. 8 and outside air temperature sensor 2P connector terminal No. 1: There should be continuity. An open or high resistance in the wire Check for continuity between terminal No. 8 and body ground: There should be no continuity. A short to ground in the wire 25 GRY Disconnect the gauge control module (speedo) 12P connector Check for continuity between terminal No. 25 and gauge control module (speedo) 12P connector terminal No. 3: There should be continuity. An open or high resistance in the UART wire Check for continuity to ground: There should be no continuity. A short to ground in the UART wire (1) With manual A/C and outside air temperature indication function
5. Reconnect the connector to the gauge control module (tach), 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, replace the gauge control module (tach) See «GAUGE CONTROL MODULE (SPEEDO) REMOVAL AND INSTALLATION»(ref-614110-S22536531082014050700000) , «GAUGE CONTROL MODULE (TACH) REMOVAL AND INSTALLATION»(ref-614110-S24253527182014050700000) or «REWRITING THE ODO DATA AND TRANSFERRING THE MAINTENANCE MINDER™ DATA TO A NEW GAUGE CONTROL MODULE»(ref-614119-S22749513832014050700000) . Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained 1 WHT 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 17 BRN Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. Blown No. B5 (7.5 A) fuse in the under-dash fuse/relay box An open or high resistance in the wire 32 BRN In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G502) An open or high resistance in the ground wire 4 BLK In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G503) An open or high resistance in the ground wire 14 (1) GRN Ignition switch ON (II), ECON button pushed Measure the voltage to ground: There should be less than 0.2 V. Faulty ECON switch Poor ground (G501) or an open in the ground wire An open or high resistance in the wire Ignition switch ON (II), ECON button released Measure the voltage to ground: There should be about 5 V. Faulty ECON switch A short to ground in the wire 10 ORN Ignition switch ON (II), Brake fluid is lower than full in the reservoir Measure the voltage to ground: There should be about 5 V. Faulty brake fluid level switch Poor ground (G401) or an open in the ground wire An open or high resistance in the wire Ignition switch ON (II), Brake fluid is at full level in the reservoir Measure the voltage to ground: There should be less than 0.2 V. Faulty brake fluid level switch A short to ground in the wire 27 LT GRN Ignition switch ON (II), Parking brake lever pulled Measure the voltage to ground: There should be less than 0.2 V. Faulty parking brake switch Faulty parking brake switch ground An open or high resistance in the wire Ignition switch ON (II), Parking brake lever released Measure the voltage to ground: There should be about 5 V. Faulty parking brake switch A short to ground in the wire 11 (2) YEL Ignition switch ON (II), washer fluid is half or more in the washer reservoir Measure the voltage to ground: There should be about 5 V. Faulty washer fluid level switch A short to ground in the wire Ignition switch ON (II), washer fluid is empty in the washer reservoir Measure the voltage to ground: There should be less than 0.2 V. Faulty washer fluid level switch Poor ground (G401) or an open in the ground wire An open or high resistance in the wire 24 RED Disconnect the outside air temperature sensor 2P connector Check for continuity between terminal No. 24 and outside air temperature sensor 2P connector terminal No. 2: There should be continuity. An open or high resistance in the wire (1) Except Si (2) Canada models

Scheme 42

1. «REMOVE THE HANDSFREELINK CONTROL UNIT (A)»(ref-614117-S09369898432014050700000) .
2. Inspect the connector (B) and the socket (C) terminals to make sure all the pins are making good contact. If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system. If the terminals look OK, go to step 3.
3. Reconnect the connector, and make these input tests at the connector. If any test indicates a problem, find and correct the cause, then recheck the system. If all the input tests are OK, go to step 4. Cavity Wire Color Test Condition Test: Desired Result Possible Cause if Desired Result is not Obtained 16 BLK Ignition switch in ACCESSORY (I) Measure the voltage to body ground: There should be less than 0.2 V. Poor ground (G503) An open or high resistance in the wire 31 PUR Ignition switch in ACCESSORY (I) Measure the voltage to body ground: There should be battery voltage. Blown No. B19 (7.5 A) fuse in the under-dash fuse/relay box An open in the wire 32 WHT Under all conditions Measure the voltage to body ground: There should be battery voltage. Blown No. A29 (10 A) fuse in the under-hood fuse/relay box An open in the wire
4. Disconnect the 32P connector again, and make this input test at the connector. If the input test is OK, the HandsFreeLink control unit is faulty, replace it. Cavity Wire Color Test Condition Test: Desired Result Possible Cause if Desired Result is not Obtained 12 PNK Audio-navigation unit connector C (14P) (1) or audio unit connector C (14P) (2) disconnected Check for continuity between terminal No. 12 and audio unit connector C (14P) terminal No. 11: There should be continuity. An open in the wire Disconnect these items: Audio-navigation unit connector C (14P) (1) Audio unit connector C (14P) (2) Multi-information display unit connector A (32P) XM receiver connector A (14P) (1) Check for continuity between terminal No. 12 and body ground: There should be no continuity. Short to body ground Disconnect these items: Audio-navigation unit connector C (14P) (1) Audio unit connector C (14P) (2) Multi-information display unit connector A (32P) XM receiver connector A (14P) (1) Check for continuity between terminals No. 12 and No. 13: There should be no continuity. Short in the wire 13 BLU Audio-navigation unit connector C (14P) (1) or audio unit connector C (14P) (2) disconnected Check for continuity between terminal No. 13 and audio unit connector C (14P) terminal No. 12: There should be continuity. An open in the wire Disconnect these items: Audio-navigation unit connector C (14P) (1) Audio unit connector C (14P) (2) Multi-information display unit connector A (32P) XM receiver connector A (14P) (1) Check for continuity between terminal No. 13 and body ground: There should be no continuity. Short to body ground (1) With navigation (2) Without navigation

Horn Switch Test

Note. SRS components are located in this area. Review the SRS component locations See SRS COMPONENT LOCATION INDEX ('12: EXCEPT NATURAL GAS MODELS) or SRS COMPONENT LOCATION INDEX ('12: NATURAL GAS MODELS) , and PRECAUTIONS AND PROCEDURES before performing repairs or servicing. Before testing, make sure the No. A18 (10 A) fuse in the under-hood fuse/relay box is OK.

Scheme 43

Scheme 44

Scheme 45

Scheme 46

Scheme 47

1. Turn the steering wheel 180° from the center position and remove the cover.
2. Disconnect the horn switch 1P connector.
3. Connect horn switch 1P connector terminal No. 1 and body ground with a jumper wire. If the horn(s) do not sound, go to step 4. If the horn(s) sound, go to step 11 .
4. Remove the jumper wire from the horn switch 1P connector.
5. «REMOVE THE DRIVER'S AIRBAG ASSEMBLY»(ref-614100-S26722413332014050700000) .
6. Disconnect cable reel connector C (20P) from the cable reel.
7. Check for continuity between cable reel connector C (20P) terminal No. 14 [No. 2] and horn switch 1P connector terminal No. 1. []: Without audio remote switch With audio remote switch Without audio remote switch If there is continuity, go to step 8. If there is no continuity, repair an open or high resistance in the wire.
8. «REMOVE THE STEERING COLUMN COVERS»(ref-614102-S02997314952014050700000) .
9. Disconnect cable reel connector A (20P).
10. Connect cable reel connector A (20P) terminal No. 2 [No. 9] and body ground with a jumper wire. []: Without audio remote switch With audio remote switch Without audio remote switch If the horn(s) sound, «REPLACE THE CABLE REEL»(ref-614118-S20062895262014050700000) . If the horns do not sound, check these items. Horn(s). Horn relay. An open or high resistance in the wire. If OK, the MICU must be faulty. Replace the under-dash fuse/relay box. See «Under-Dash Fuse/Relay Box Removal and Installation (KA model with Keyless Access System)»(ref-614103-S25481539492014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KA KX models without Keyless Access System)»(ref-614103-S30620497412014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KC models without Keyless Access System)»(ref-614103-S15264253742014053000000) or «Under-Dash Fuse/Relay Box Removal and Installation (KC model with Keyless Access System)»(ref-614103-S40084232992014053000000)
11. «REMOVE THE DRIVER'S AIRBAG ASSEMBLY»(ref-614100-S30438889082014050700000) .
12. Check the installation of the driver's airbag assembly and the steering wheel. If the horn switch plate is OK, «REPLACE THE DRIVER'S AIRBAG ASSEMBLY»(ref-614100-S26722413332014050700000) .

Information Display Unit Input Test

Note. Before testing, DO THE GAUGE CONTROL MODULE SELF-DIAGNOSTIC FUNCTION , and make sure the B-CAN communication lines are OK.

Scheme 48

1. Turn the ignition switch to LOCK (0).
2. Disconnect the information display unit 12P connector.
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. Reconnect the connector to the information display unit, 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, «REPLACE THE INFORMATION DISPLAY UNIT»(ref-614110-S05429705582014050700000) . Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained 6 WHT Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. A29 (7.5 A) fuse in the under-hood fuse/relay box Faulty under-dash fuse/relay box An open or high resistance in the wire 4 PUR Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. Blown No. B5 (7.5 A) fuse in the under-dash fuse/relay box An open or high resistance in the wire 5 BRN Ignition switch ACCESSORY (I) Measure the voltage to ground: There should be battery voltage. Blown No. B19 (7.5 A) fuse in the under-dash fuse/relay box An open or high resistance in the wire 2 BRN In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G502) An open or high resistance in the ground wire

Keyless/Power Door Locks/Security System (MICU) Input Test (Except Natural Gas models)

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 and the No. B5 (7.5 A) fuse in the under-dash fuse/relay box are OK. With keyless entry; before testing: Make sure the headlights, parking lights, side marker lights, taillights, and horn(s) all work properly. Make sure the No. B8 (15 A), No. B9 (15 A), No. B15 (15 A), No. B30 (15 A), No. B32 (15 A), No. B33 (15 A), and No. B41 (20 A) fuses in the under-dash fuse/relay box are OK. 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 49

1. Turn the ignition switch to LOCK (0).
2. Disconnect under-dash fuse/relay box connectors A, B, C, D, N, P, R, S, W, and X. See «Under-Dash Fuse/Relay Box Removal and Installation (KA model with Keyless Access System)»(ref-614103-S25481539492014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KA KX models without Keyless Access System)»(ref-614103-S30620497412014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KC models without Keyless Access System)»(ref-614103-S15264253742014053000000) or «Under-Dash Fuse/Relay Box Removal and Installation (KC model with Keyless Access System)»(ref-614103-S40084232992014053000000) NOTE: All connector views are shown from wire side of 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 P20 (1) BRN In all ignition switch positions Check for continuity to ground: There should be continuity. Poor ground (G502) An open or high resistance in the ground wire R7 (1) BRN In all ignition switch positions Check for continuity to ground: There should be continuity. Poor ground (G502) An open or high resistance in the ground wire N10 BLU Connect terminals D3 (2) 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 YEL S3 BLU Connect terminals D3 (2) 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 B15 BLU Connect terminals D3 (2) and B15 (or B11), and terminal B11 (or B15) 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 YEL B18 BLU Connect terminals D3 (2) and B18 (or B9), and terminal B9 (or B18) and ground with jumper wires. Check actuator operation: The right rear door lock actuator and should LOCK (or UNLOCK). Faulty right rear door lock actuator An open or high resistance in the wire B9 YEL B7 GRN Connect terminals D3 (2) and B7 with a jumper wire momentarily. Check actuator operation: The trunk lid release actuator should work. Faulty trunk lid release actuator Poor ground (G701) or an open in the ground wire An open or high resistance in the wire (1) With keyless entry (2) 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. See «Under-Dash Fuse/Relay Box Removal and Installation (KA model with Keyless Access System)»(ref-614103-S25481539492014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KA KX models without Keyless Access System)»(ref-614103-S30620497412014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KC models without Keyless Access System)»(ref-614103-S15264253742014053000000) or «Under-Dash Fuse/Relay Box Removal and Installation (KC model with Keyless Access System)»(ref-614103-S40084232992014053000000) Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained A3 BLU Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. An open or high resistance in the wire D28 WHT 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 D3 YEL 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 (G602) 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 (G401) 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 LT GRN 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 (3) BRN 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 rears door switch A short to ground in the wire B34 (3) 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 (2) BLU 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 (G502) 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 (2) 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 (G502) 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 (2) 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 (G502) 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 (2) 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 (G502) 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 (2) YEL 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 (G504) 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 (2) PUR 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 (G504) 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 (2) 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 (G502) 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 (G502) 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 (2) 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 (G502) 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 W4 (2) BRN 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 (G602) 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 W5 (2) BRN 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 (G602) 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 B22 BLU Trunk lid open Measure the voltage to ground: There should be less than 0.2 V. Faulty trunk lid latch switch Poor ground (G701) or an open in the ground wire An open or high resistance in the wire Trunk lid closed Measure the voltage to ground: There should be battery voltage. Faulty trunk lid latch switch A short to ground in the wire D23 (4) GRN 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 BRN 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 (G503) 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. (5) Faulty audio unit Poor ground (G505) or an open in the ground wire An open or high resistance in the wire (1) With security (2) With keyless entry (3) 4-door (4) A/T (5) If the factory-installed audio unit is removed from the vehicle, this voltage will be between 10-12 V.

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

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. Make sure the No. B5 (7.5 A), No. B8 (15 A), No. B9 (15 A), No. B15 (15 A), No. B30 (15 A), No. B32 (15 A), No. B33 (15 A), and No. B41 (20 A) fuses in the under-dash fuse/relay box are OK. 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). Make sure the headlights, parking lights, side marker lights, taillights, and horn(s) all work properly.

Scheme 50

1. Turn the ignition switch to LOCK (0).
2. Disconnect under-dash fuse/relay box connector A, B, C, D, N, P, R, S, W, and X. See «Under-Dash Fuse/Relay Box Removal and Installation (KA model with Keyless Access System)»(ref-614103-S25481539492014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KA KX models without Keyless Access System)»(ref-614103-S30620497412014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KC models without Keyless Access System)»(ref-614103-S15264253742014053000000) or «Under-Dash Fuse/Relay Box Removal and Installation (KC model with Keyless Access System)»(ref-614103-S40084232992014053000000) 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 P20 BRN In all ignition switch positions Check for continuity to ground: There should be continuity. Poor ground (G502) An open or high resistance in the ground wire R7 BRN In all ignition switch positions Check for continuity to ground: There should be continuity. Poor ground (G502) An open or high resistance in the ground wire N10 BLU Connect terminals D3 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 YEL S3 BLU Connect terminals D3 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 B15 BLU Connect terminals D3 and B15 (or B11), and terminal B11 (or B15) 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 YEL B18 BLU Connect terminals D3 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 GRN Connect terminals D3 and B7 with a jumper wire momentarily. Check actuator operation: The trunk lid release actuator should work. Faulty trunk lid release actuator Poor ground (G701) or an open in the ground wire An open or high resistance in the wire *: Use a fuse-pretected 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. See «Under-Dash Fuse/Relay Box Removal and Installation (KA model with Keyless Access System)»(ref-614103-S25481539492014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KA KX models without Keyless Access System)»(ref-614103-S30620497412014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KC models without Keyless Access System)»(ref-614103-S15264253742014053000000) or «Under-Dash Fuse/Relay Box Removal and Installation (KC model with Keyless Access System)»(ref-614103-S40084232992014053000000) Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained A3 BLU Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. An open or high resistance in the wire D28 WHT 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 D3 YEL 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 (G602) An open or high resistance in the ground wire C27 LT BLU Hood closed Measure the voltage to ground: There should be less than 0.2 V. Faulty security hood switch Poor ground (G401) 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 LT GRN 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 BRN 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 BLU 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 (G502) 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 (G502) 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 (G502) 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 (G502) 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 YEL 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 (G504) 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 PUR 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 (G504) 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 (G502) 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 (G502) 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 (G502) 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 W4 BRN 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 (G602) 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 W5 BRN 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 (G602) 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 B22 BLU Trunk lid open Measure the voltage to ground: There should be less than 0.2 V. Faulty trunk lid latch switch Poor ground (G701) or an open in the ground wire An open or high resistance in the wire Trunk lid closed Measure the voltage to ground: There should be battery voltage. Faulty trunk lid latch switch A short to ground in the wire W17 BLU Fuel fill door open Measure the voltage to ground: There should be less than 0.2 V. Faulty fuel fill door switch Poor ground (G701) or an open in the ground wire An open or high resistance in the wire Fuel fill door closed Measure the voltage to ground: There should be battery voltage. Faulty fuel fill door switch A short to ground in the wire D23 GRN 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 BRN 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 (G503) or an open in the ground wire An open or high resistance in the wire Ignition switch in 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 GRN Under all conditions Measure the voltage to ground: There should be less than 0.2 V. (1) Faulty audio unit Poor ground (G505) or an open in the ground wire An open or high resistance in the wire (1) 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 the indicated DTCs first.

Scheme 51

1. Turn the ignition switch to LOCK (0).
2. Disconnect under-dash fuse/relay box connectors A, B, D, K, M, Q, and W. MICU Input Test NOTE: All connector views are shown from wire side of 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 (1) BLU Disconnect the climate control unit 32P connector Check for continuity between terminal K1 and climate control unit 32P connector terminal No. 27: 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. 26: There should be continuity. 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. M1 BLU Disconnect audio unit connector B (20P) Check for continuity between terminal M1 and audio unit connector B (20P) terminal No. 3: There should be continuity. An open in the B-CAN wire M2 PNK Check for continuity between terminal M2 and audio unit connector B (20P) terminal No. 13: There should be continuity. M1 (2) BLU Disconnect the automatic lighting control unit 14P connector Check for continuity between terminal M1 and automatic lighting control unit 14P connector terminal No. 4: There should be continuity. An open in the B-CAN wire M2 (2) PNK Check for continuity between terminal M2 and automatic lighting control unit 14P connector terminal No. 3: There should be continuity. K1 BLU Disconnect the gauge control module (tach) 32P connector Check for continuity between terminal K1 and gauge control module (tach) 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 (tach) 32P connector terminal No. 30: There should be continuity. Q6 (3) BLU Disconnect multi-information display unit connector A (32P) Check for continuity between terminal Q6 and multi-information display unit connector A (32P) terminal No. 15: There should be continuity. An open in the B-CAN wire Q5 (3) PNK Check for continuity between terminal Q5 and multi-information display unit connector A (32P) terminal No. 31: There should be continuity. Q6 BLU Disconnect the information display unit 12P connector Check for continuity between terminal Q6 and information display unit 12P connector terminal No. 7: There should be continuity. An open in the B-CAN wire Q5 PNK Check for continuity between terminal Q5 and information display unit 12P connector terminal No. 9: 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 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. See «Under-Dash Fuse/Relay Box Removal and Installation (KA model with Keyless Access System)»(ref-614103-S25481539492014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KA KX models without Keyless Access System)»(ref-614103-S30620497412014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KC models without Keyless Access System)»(ref-614103-S15264253742014053000000) or «Under-Dash Fuse/Relay Box Removal and Installation (KC model with Keyless Access System)»(ref-614103-S40084232992014053000000) 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 A3 BLU Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. An open or high resistance in the wire D28 WHT 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 (G602) An open or high resistance in the ground wire

Moonroof Control Unit Input Test

Note. Before testing, make sure the No. B5 (7.5 A) fuse in the under-dash fuse/relay box is OK. If the moonroof works OK manually, but will not work in AUTO, or reverses frequently (obstacle detection), RESET THE MOONROOF BEFORE PROCEEDING with the input test.

Scheme 52

1. Turn the ignition switch to LOCK (0).
2. Disconnect the moonroof control unit/motor 14P connector See «MOONROOF MOTOR REMOVAL AND INSTALLATION (2-DOOR)»(ref-614171-S10675706072014050700000) or «MOONROOF MOTOR REMOVAL AND INSTALLATION (4-DOOR)»(ref-614171-S15664611942014050700000) .
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 11 GRN Disconnect under-dash fuse/relay box connector R (8P) Check for continuity between terminal No. 11 and under-dash fuse/relay box connector R (8P) terminal No. 6: There should be continuity. An open or high resistance in the wire Check for continuity to ground: There should be no continuity. A short to ground in the wire 5 BLU Jump the SCS line with the HDS, disconnect ECM/PCM connector A (49P). See «How to Troubleshoot the A/T System»(ref-614091-S31453792442014050700000) , except K24Z7 engine How to Troubleshoot the Fuel and Emissions Systems (R18A9) or How to Troubleshoot the Fuel and Emissions Systems (R18Z1) . K24Z7 engine How to Troubleshoot the Fuel and Emissions Systems (K24Z7) Check for continuity between terminal No. 5 and ECM/PCM connector A (49P) No. 26: There should be continuity. An open or high resistance in the wire Check for continuity to ground: There should be no continuity. A short to ground in the wire
5. Reconnect the connector to the moonroof control unit/motor, 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, replace the moonroof control unit/motor See «MOONROOF MOTOR REMOVAL AND INSTALLATION (2-DOOR)»(ref-614171-S10675706072014050700000) or «MOONROOF MOTOR REMOVAL AND INSTALLATION (4-DOOR)»(ref-614171-S15664611942014050700000) . NOTE: After replacing the moonroof control unit/motor, «DO THE MOONROOF CONTROL UNIT RESETTING PROCEDURE»(ref-614171-S34033767802014050700000) . Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained 1 GRN Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. B11 (20 A) fuse in the under-dash fuse/relay box An open or high resistance in the wire 10 WHT Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. Blown No. B6 (7.5 A) fuse in the under-dash fuse/relay box An open or high resistance in the wire 4 BRN In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G502) An open or high resistance in the ground wire 9 YEL Ignition switch ON (II), moonroof switch in CLOSE position Measure the voltage to ground: There should be less than 0.2 V. Faulty moonroof switch Poor ground (G501) or an open in the ground wire An open or high resistance in the wire Ignition switch ON (II), moonroof switch released Measure the voltage to ground: There should be battery voltage. Faulty moonroof switch A short to ground in the wire 8 LT GRN Ignition switch ON (II), moonroof switch in TILT position Measure the voltage to ground: There should be less than 0.2 V. Faulty moonroof switch Poor ground (G501) or an open in the ground wire An open or high resistance in the wire Ignition switch ON (II), moonroof switch released Measure the voltage to ground: There should be battery voltage. Faulty moonroof switch A short to ground in the wire 7 LT BLU Ignition switch ON (II), moonroof switch in OPEN position Measure the voltage to ground: There should be less than 0.2 V. Faulty moonroof switch Poor ground (G501) or an open in the ground wire An open or high resistance in the wire Ignition switch ON (II), moonroof switch released Measure the voltage to ground: There should be battery voltage. Faulty moonroof switch A short to ground in the wire 14 PUR Ignition switch ON (II), moonroof switch in AUTO (OPEN) or AUTO (CLOSE) position Measure the voltage to ground: There should be less than 0.2 V. Faulty moonroof switch Poor ground (G501) or an open in the ground wire An open or high resistance in the wire Ignition switch ON (II), moonroof switch released Measure the voltage to ground: There should be battery voltage. Faulty moonroof switch A short to ground in the wire

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

Scheme 53

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 Seat heater 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) Multi-information display unit Automatic lighting control unit NOTE: 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»(ref-614109-S15012137452014050700000) . If all units are not communicating or only the MICU is communicating, see «DTC U1280: Communication Bus Line Error (BUS-OFF)»(ref-614170-S29978301212014050700000) . 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.
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»(ref-614109-S19276354922014050700000) . 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»(ref-614109-S37414014372014050700000) . 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 Seat heater
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.

Do this diagnosis if any of the control units are not communicating (NOT AVAILABLE is displayed in the HDS) as found by the B-CAN System Diagnosis Test Mode A

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. See «Under-Dash Fuse/Relay Box Removal and Installation (KA model with Keyless Access System)»(ref-614103-S25481539492014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KA KX models without Keyless Access System)»(ref-614103-S30620497412014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KC models without Keyless Access System)»(ref-614103-S15264253742014053000000) or «Under-Dash Fuse/Relay Box Removal and Installation (KC model with Keyless Access System)»(ref-614103-S40084232992014053000000)
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»(ref-614109-S28765835542014050700000) Gauge control module See «GAUGE CONTROL MODULE (SPEEDO) INPUT TEST»(ref-614109-S11672446262014050700000) or «GAUGE CONTROL MODULE (TACH) INPUT TEST»(ref-614109-S13349310952014050700000) «IMMOBILIZER-KEYLESS CONTROL UNIT»(ref-614109-S12491198862014050700000) «CLIMATE CONTROL UNIT»(ref-614127-S36624706522014050700000) «AUTOMATIC LIGHTING CONTROL UNIT»(ref-614109-S23755502852014050700000) «AUDIO UNIT»(ref-614115-S28590811012014050700000) «MULTI-INFORMATION DISPLAY UNIT»(ref-614115-S28590811012014050700000) «INFORMATION DISPLAY UNIT»(ref-614109-S14692028072014050700000)

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»(ref-614109-S07771358762014050700000) . 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 indicate the switch is OFF, go to step 4. If HDS indicate 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.

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»(ref-614109-S07771358762014050700000) . 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 is 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 indicate 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.

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 ECM/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) Trunk lid latch 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)

1. Shift to 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 fewer 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. 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. NOTE: After confirming the system is in sleep mode, look in the list for the switch most related to the problem. Operate that switch and see if its control unit wakes up. IG1 power supply IG2 power supply ACC power supply B-CAN data Driver's door switch (Open) Left rear door switch (Open) Trunk lid latch switch (Open) Trunk lid 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 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) Fuel fill door switch (Open)

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. A14 (10 A) and No. A29 (10 A) fuses in the under-hood fuse/relay box, and the No. B5 (7.5 A) fuse in the under-dash fuse/relay box are OK.

Scheme 54

1. Turn the ignition switch to LOCK (0).
2. Disconnect under-dash fuse/relay box connectors A, B, C, D, K, R, T, and W. See «Under-Dash Fuse/Relay Box Removal and Installation (KA model with Keyless Access System)»(ref-614103-S25481539492014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KA KX models without Keyless Access System)»(ref-614103-S30620497412014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KC models without Keyless Access System)»(ref-614103-S15264253742014053000000) or «Under-Dash Fuse/Relay Box Removal and Installation (KC model with Keyless Access System)»(ref-614103-S40084232992014053000000) NOTE: All connector views are shown from wire side of 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 K11 BLU Connect terminals K11 and D11 with a jumper wire Check the turn signal lights operation: The left turn signal indicator should come on. Faulty gauge control module (speedo) An open or high resistance in the wire K10 BRN Connect terminals K10 and D11 with a jumper wire Check the turn signal lights operation: The right turn signal indicator should come on. Faulty gauge control module (speedo) An open or high resistance in the wire C11 BLU Connect terminals C11 and D11 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 BRN Connect terminals C7 and D11 with a jumper wire Check the turn signal lights operation: The right front turn signal light should come on. Blown bulb Poor ground (G201) or an open in the ground wire An open or high resistance in the wire B4 BLU Connect terminals B4 and D11 with a jumper wire Check the turn signal lights operation: The left rear turn signal light should come on. Blown bulb Poor ground (G701) or an open in the ground wire An open or high resistance in the wire B12 BRN Connect terminals B12 and D11 with a jumper wire Check the turn signal lights operation: The right rear turn signal light should come on. Blown bulb Poor ground (G701) 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. See «Under-Dash Fuse/Relay Box Removal and Installation (KA model with Keyless Access System)»(ref-614103-S25481539492014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KA KX models without Keyless Access System)»(ref-614103-S30620497412014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KC models without Keyless Access System)»(ref-614103-S15264253742014053000000) or «Under-Dash Fuse/Relay Box Removal and Installation (KC model with Keyless Access System)»(ref-614103-S40084232992014053000000) Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained A3 BLU Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. An open or high resistance in the wire D28 WHT 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 D11 BRN Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. Blown No. A14 (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 (G602) An open or high resistance in the ground wire R1 WHT Under all conditions Measure the voltage to ground: There should be battery voltage. Blown No. A14 (10 A) fuse in the under-hood fuse 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 LT GRN . 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 ground 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 in the wire T13 . T5 BRN . 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 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. A29 (10 A) fuse in the under-hood fuse/relay box, and the No. B5 (7.5 A), No. B28 (15 A), and No. B46 (30 A) fuses in the under-dash fuse/relay box are OK.

Scheme 55

1. Turn the ignition switch to LOCK (0).
2. Disconnect under-dash fuse/relay box connectors A, B, C, D, P, R, T, and W. See «Under-Dash Fuse/Relay Box Removal and Installation (KA model with Keyless Access System)»(ref-614103-S25481539492014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KA KX models without Keyless Access System)»(ref-614103-S30620497412014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KC models without Keyless Access System)»(ref-614103-S15264253742014053000000) or «Under-Dash Fuse/Relay Box Removal and Installation (KC model with Keyless Access System)»(ref-614103-S40084232992014053000000) NOTE: All connector views are shown from wire side of 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 C4 . C22 GRN . BLU Connect under-dash fuse/relay box connector A (5P), ignition switch ON (II) Connect terminals C4 and A3, and terminal C22 to body ground with jumper wires: The windshield wiper motor should run at high speed. Blown No. B46 (30 A) fuse in the under-dash fuse/relay box Faulty windshield wiper main relay Faulty windshield wiper high/low relay Faulty windshield wiper motor Poor ground (G201) or an open in the ground wire An open or high resistance in the wire P20 BRN In all ignition switch positions Check for continuity to ground: There should be continuity. Poor ground (G502) An open or high resistance in the ground wire R7 BRN In all ignition switch positions Check for continuity to ground: There should be continuity. Poor ground (G502) An open or high resistance in the ground wire T6 (1) . T15 BLU . BLK 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 C32 PUR Connect under-dash fuse/relay box connector A (5P), ignition switch ON (II), then run the windshield wiper motor by connecting terminals C4 and A3, 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 windshield wiper main relay Faulty windshield wiper high/low relay An open or high resistance in the wire C15 ORN Connect under-dash fuse/relay box connector A (5P), ignition switch ON (II) Connect terminals C15 and A3 with a jumper wire: The windshield washer motor should run. Faulty windshield washer motor Poor ground (G201) or an open in the ground wire An open or high resistance in the wire C23 WHT Connect under-dash fuse/relay box connector A (5P), ignition switch ON (II), then run the windshield wiper motor by connecting terminals C4 and A3, and terminal C22 and body ground with jumper wires. Check for continuity to ground: The needle of the ohmmeter should pulse 1 time per wiper motor cycle. NOTE: Use a DVOM. Faulty windshield 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. See «Under-Dash Fuse/Relay Box Removal and Installation (KA model with Keyless Access System)»(ref-614103-S25481539492014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KA KX models without Keyless Access System)»(ref-614103-S30620497412014050700000) , «Under-Dash Fuse/Relay Box Removal and Installation (KC models without Keyless Access System)»(ref-614103-S15264253742014053000000) or «Under-Dash Fuse/Relay Box Removal and Installation (KC model with Keyless Access System)»(ref-614103-S40084232992014053000000) Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained A3 BLU Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. An open or high resistance in the wire D28 WHT 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 (G602) An open or high resistance in the ground wire D6 LT GRN Brake pedal pressed Measure the voltage to ground: There should be battery voltage. Blown No. A17 (15 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 ground wire Windshield wiper/washer switch OFF Measure the voltage to ground: There should be about 5 V. Faulty windshield wiper/washer switch A short 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 ground wire Windshield wiper/washer switch OFF Measure the voltage to ground: There should be about 5 V. Faulty windshield wiper/washer switch A short 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 ground wire Windshield wiper/washer switch OFF Measure the voltage to ground: There should be about 5 V. Faulty windshield wiper/washer switch A short 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 ground wire Windshield washer switch OFF Measure the voltage to ground: There should be about 5 V. Faulty windshield wiper/washer switch A short in the wire D23 (1) GRN 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 in the wire (1) A/T