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Multiplex Integrated Control System: Other Honda Civic IX

Communication Devices 7 illustrations ~1408 words

Without power window auto up/down function

Motor Test

Scheme 74

Scheme 74: Without power window auto up/down function
Scheme 74: Without power window auto up/down function

Scheme 75

Scheme 75
Scheme 75

Scheme 76

Scheme 76
Scheme 76
  1. Remove the power window master switch See «POWER WINDOW MASTER SWITCH REMOVAL AND INSTALLATION (2-DOOR)»(ref-614120-S21760717062014050700000) or «POWER WINDOW MASTER SWITCH REMOVAL AND INSTALLATION (4-DOOR)»(ref-614120-S16127945742014050700000) .
  2. Test the motor in each direction by connecting battery power and ground to the power window master switch 26P 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 driver's power window motor.
  6. Check for continuity between the power window master switch 26P connector terminals and driver's power window motor 2P connector terminals as shown. There should be continuity. Power window master switch 26P connector Driver's power window motor 2P connector 14 1 19 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 driver's door 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) .

With driver's power window auto up/down function

Motor Test

Scheme 77

Scheme 77: With driver's power window auto up/down function
Scheme 77: With driver's power window auto up/down function

Scheme 78

Scheme 78
Scheme 78

Scheme 79

Scheme 79
Scheme 79
  1. Remove the power window master switch See «POWER WINDOW MASTER SWITCH REMOVAL AND INSTALLATION (2-DOOR)»(ref-614120-S21760717062014050700000) or «POWER WINDOW MASTER SWITCH REMOVAL AND INSTALLATION (4-DOOR)»(ref-614120-S16127945742014050700000) .
  2. Test the motor in each direction by connecting battery power and ground to the power window master switch 26P 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»(ref-614126-S24343278792014050700000) .
  5. Disconnect the 6P connector from the driver's power window motor.
  6. Check for continuity between the power window master switch 26P connector terminals and driver's power window motor 6P connector terminals as shown. There should be continuity. Power window master switch 26P connector Driver's power window motor 6P connector 14 1 19 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 driver's door 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) . Hall IC Unit (Pulser) Test
  8. Do the power window master switch input test for terminals No. 9, No. 10, No. 11, and No. 12.

Immobilizer System Status Log

If you suspect there is an immobilizer system problem, check the status log in the HDS.

  1. Connect the HDS to the data link connector (DLC).
  2. Turn the ignition switch to ON (II).
  3. On the HDS screen, at SYSTEM SELECTION MENU, enter IMMOBI, then select IMMOBILIZER SETUP, select SYSTEM CHECK, NUMBER of KEYS and STATUS LOG, then select STATUS LOG.
  4. Check the STATUS LOG count. Troubleshoot the status with the highest count first. If no counts are listed, the immobilizer system is OK. Continue with normal symptom troubleshooting. Status Log No. Detected Item Probable Cause A-1 KEY CODE MISMATCH 1 (Code format correct, but code data does not match) The key was not registered Interference from metal such as key chains Low battery voltage A-2 KEY CODE MISMATCH 2 (Incorrect code format) Ignition switch was turned to ON (II) with another type of immobilizer key or aftermarket key Interference from metal such as key chains Low battery voltage A-3 KEY CODE MISMATCH 3 (No transponder detected) Ignition switch was turned to ON (II) with another type of immobilizer key or aftermarket key Interference from metal such as key chains Low battery voltage Key failure Immobilizer-keyless control unit failure B-1 PCM CODE MISMATCH 1 (Code format correct, but code data does not match) ECM/PCM was not registered correctly Low battery voltage Poor or loose terminal connections at the immobilizer-keyless control unit Communication line electrical noise B-2 PCM MISMATCH 2 (Incorrect code format) ECM/PCM was not registered correctly Low battery voltage Poor or loose terminal connections at the immobilizer-keyless control unit Communication line electrical noise C-1 IMOES UNIT MISMATCH 1 (Code format correct, but data does not match) Imoes unit was not registered correctly The communication was not good between imoes unit and immobilizer-keyless control unit by battery voltage low The communication was not good between imoes unit and immobilizer-keyless control unit by influence of some noise C-2 IMOES UNIT MISMATCH 2 (Incorrect code format) Imoes unit was not registered correctly The communication was not good between imoes unit and immobilizer-keyless control unit by battery voltage low The communication was not good between imoes unit and immobilizer-keyless control unit by influence of some noise D-1 S-NET LINE PROBLEM 1 (Short to ground) Low battery voltage Poor or loose terminal connections at the immobilizer-keyless control unit and the ECM/PCM Communication line electrical noise D-2 S-NET LINE PROBLEM 2 (No communication) Blown fuse Harness open from imoes unit to immobilizer-keyless control unit Bad communication between the imoes unit and immobilizer-keyless control unit caused by low battery voltage Bad communication between the imoes unit and immobilizer-keyless control unit due to electrical interference Imoes unit failure Immobilizer-keyless control unit failure D-3 S-NET LINE PROBLEM 3 (Open line or ECM/PCM failure) Open or short in the harness from the ECM/PCM to the immobilizer-keyless control unit Low battery voltage Poor or loose terminal connections at the immobilizer-keyless control unit and the ECM/PCM Poor S-NET data communication due to electrical interference

Immobilizer-Keyless Control Unit Input 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 doing repairs or servicing.

Scheme 80

Scheme 80: Immobilizer-Keyless Control Unit Input Test
Scheme 80: Immobilizer-Keyless Control Unit Input Test
  1. Turn the ignition switch to LOCK (0).
  2. Disconnect the immobilizer-keyless control unit 7P connector. «Immobilizer-Keyless Control Unit Removal and Installation»(ref-614157-S12135910642014050700000)
  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 Terminal name Test condition Test: Desired result Possible cause if desired result is not obtained 2 LT GRN S-NET Jump the SCS line with the HDS, disconnect ECM/PCM connector A (49P) See «IMMOBILIZER-KEYLESS CONTROL UNIT REGISTRATION»(ref-614157-S00853115642014050700000) or «IMMOBILIZER-KEYLESS CONTROL UNIT REMOVAL AND INSTALLATION»(ref-614157-S12135910642014050700000) Measure the voltage to ground: There should be about 5 V. An open or high resistance in the wire A short to ground in the wire Check for continuity between the terminal and ECM/PCM connector A (49P) terminal No. 17: There should be continuity. An open or high resistance in the wire Disconnect the battery negative terminal Measure the resistance between the terminal and body ground: There should be more than 50 kohms. Faulty under-dash fuse/relay box Poor ground (G101) An open or high resistance in the ground wire
  5. Reconnect the connector to the immobilizer-keyless 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 immobilizer-keyless control unit See «IMMOBILIZER-KEYLESS CONTROL UNIT REGISTRATION»(ref-614157-S00853115642014050700000) or «IMMOBILIZER-KEYLESS CONTROL UNIT REMOVAL AND INSTALLATION»(ref-614157-S12135910642014050700000) . NOTE: After replacing the immobilizer-keyless control unit, do the immobilizer key registration. See «Immobilizer-Keyless Control Unit Registration»(ref-614157-S00853115642014050700000) Cavity Wire Terminal name Test condition Test: Desired result Possible cause if desired result is not obtained 7 WHT +B_BACK_UP 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 6 YEL IG1_FUEL_PUMP Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage. Blown No. B4 (15 A) fuse in the under-dash fuse/relay box An open or high resistance in the wire 1 BLK LG In all ignition switch positions Measure the voltage to ground: There should be less than 0.2 V. Poor ground (G101) An open or high resistance in the ground wire 3 LT BLU K_LINE Under all conditions Measure the voltage to ground: There should be pulse voltage (digital signal). Faulty control unit on the K-LINE Short to ground in the K-LINE wire

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