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HOMESERVICE MANUALSHONDA2011CR-V EX, 2.4 RE3, MZJAREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEDOOR LOCKSIMMOBILIZER SYSTEMIMMOBILIZER-KEYLESS CONTROL UNIT INPUT TEST
2011 Honda CR-V EX, 2.4 RE3, MZJA

Immobilizer-Keyless Control Unit Input Test

2011 Honda CR-V EX, 2.4 RE3, MZJASECTION Immobilizer-Keyless Control Unit Input Test
NOTE: Before testing, troubleshoot the multiplex integrated control unit first, using B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ), and check the No. 23 (10 A) fuse in the under-hood fuse/relay box and the No. 2 (15 A) fuse in the under-dash fuse/relay box.
  1. Remove the driver's dashboard lower cover (see DRIVER'S DASHBOARD LOWER COVER REMOVAL/INSTALLATION ).
  2. Remove the steering column covers (see COLUMN COVER REMOVAL/INSTALLATION ).
  3. Disconnect the 7P connector (A) from the immobilizer-keyless control unit (B).
    Fig 1: Locating 7P Connector And Immobilizer-Keyless Control Unit
    G06612444Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. Inspect the connector and socket terminals to be sure they are all making good contact.
    • If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.
    • If the terminals look OK, go to step 5.
  5. With the connector still disconnected, do these input tests at the following connector.
    • If any test indicates a problem, find and correct the cause, then recheck the system.
    • If all the input tests prove OK, go to step 6.
    TEST CONDITION REFERENCE CHART

    Cavity Wire Terminal name Test condition Test: Desired result Possible cause if desired result is not obtained
    3 GRN S-NET (IMOCD) Under all conditions Check for continuity between terminal No. 3 and PCM connector A (44P) terminal No. 44(1) No. 46(2) through the MICU: There should be continuity.
    • An open or high resistance in the wire
    • Faulty under-dash fuse/relay box
    • Bad connection at under-dash fuse/relay box connectors F or R
    Check for continuity between terminal No. 3 and body ground: There should be no continuity.
    • A short to ground in the wire
    • Faulty under-dash fuse/relay box
    • Faulty imoes unit circuit built in the MICU
    4 PNK B-CAN Under all conditions Check for continuity between terminal No. 4 and gauge control module 36P connector terminal No. 20, and under-dash fuse/relay box connector Q (16P) terminal No. 6, and under-dash junction box connectors J, F, and L: There should be continuity. An open or high resistance in the wire
    Check for continuity between terminal No. 4 and body ground: There should be no continuity. A short to ground in the wire
    (1) '07-09 models
    (2) '10-11 models
  6. Reconnect the connector, and do these input tests at the following connector.
    • 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.
    NOTE: After replacing the immobilizer-keyless control unit, do the immobilizer registration (see IMMOBILIZER KEY REGISTRATION ).
    TEST CONDITION REFERENCE CHART

    Cavity Wire Test name Test condition Test: Desired result Possible cause if desired result is not obtained
    1 ORN VBU Under all conditions Measure the voltage to ground: There should be battery voltage.
    • Blown No. 23 (10 A) fuse in the under-hood fuse/relay box
    • An open or high resistance in the wire
    2 LT BLU IG1 Ignition switch ON (II) Measure the voltage to ground: There should be battery voltage.
    • Blown No. 2 (15 A) fuse in the under-dash fuse/relay box
    • An open or high resistance in the wire
    6 GRY IG KEY SW Ignition key inserted into the ignition switch Measure the voltage to ground: There should be less than 0.2 V.
    • Poor ground (G501) or an open in the ground wire
    • Faulty ignition key switch
    • An open or high resistance in the wire
    7 BRN LG Under all conditions Measure the voltage to ground: There should be less than 0.2 V.
    • Poor ground (G101) or an open in the ground wire
    • An open or high resistance in the wire
RENDER: 1.0x

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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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