Entry Lights Control System Acura RDX I

Scheme 16

Scheme 17

Scheme 18

Scheme 19

1. Before troubleshooting the entry lights control system, refer to B-CAN System Diagnosis Test Mode A (see «TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A»(/acura/rdx/i-2006-2009/remont/communication-devices/#multiplex-integrated-control-system__troubleshooting-b-can-system-diagnosis-test) ).
2. Check the No. 10 (7.5 A) fuse in the under-dash fuse/relay box. If any fuse is blown, replace it and go to step 3.
3. Disconnect under-dash fuse/relay box connectors E, F, K, R, and T. NOTE: All connector views are shown from wire side of female terminals.
4. Inspect the connector and socket terminals to be sure they are all making good contact. If the terminals are bent, loose or corroded, repair them as necessary and recheck the system. If the terminals look OK, go to step 5.
5. With the connectors still disconnected, make these input tests at the appropriate 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. SYMPTOM CHART Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained K4 PNK Interior light switch in middle (DOOR) position Attach to ground: The ceiling light and front individual map lights should come on. Blown No. 22 (7.5 A) fuse in the under-hood fuse/relay box Blown bulb(s) Faulty ceiling light Faulty front individual map light Faulty interior light switch Faulty junction box An open in the wire
6. Reconnect the connectors to the under-dash fuse/relay box, turn the ignition switch ON (II), and make these input tests at the connectors. If any test indicates a problem, find and correct the cause, then recheck the system. If all the input tests prove OK, the MICU must be faulty; replace the under-dash fuse/relay box. SYMPTOM CHART Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained E6 BLK Under all conditions Measure the voltage to ground: There should be less than 0.5 V. Poor ground (G601) An open in the wire E33 BLK Under all conditions Measure the voltage to ground: There should be less than 0.5 V. Poor ground (G601) An open in the wire F20 BLK Under all conditions Measure the voltage to ground: There should be less than 0.5 V. Poor ground (G451) An open in the wire T34 BLK Under all conditions Measure the voltage to ground: There should be less than 0.5 V. Poor ground (G501) An open in the wire E37 GRN Driver's door open Measure the voltage to ground: There should be less than 1 V. Faulty driver's door switch An open in the wire Driver's door closed Measure the voltage to ground: There should be 5 V or more. Faulty driver's door switch A short to ground in the wire E3 LT GRN Front passenger's door open Measure the voltage to ground: There should be less than 1 V. Faulty front passenger's door switch An open in the wire Front passenger's door closed Measure the voltage to ground: There should be 5 V or more. Faulty front passenger's door switch A short to ground in the wire E2 LT BLU Right rear door open Measure the voltage to ground: There should be less than 1 V. Faulty right rear door switch An open in the wire Right rear door closed Measure the voltage to ground: There should be 5 V or more. Faulty right rear door switch A short to ground in the wire E17 BRN Left rear door open Measure the voltage to ground: There should be less than 1 V. Faulty left rear door switch An open in the wire Left rear door closed Measure the voltage to ground: There should be 5 V or more. Faulty left rear door switch A short to ground in the wire R6 PNK Ignition key inserted into the ignition switch Measure the voltage to ground: There should be less than 1. V. Poor ground (G502) Faulty ignition key switch An open in the wire Ignition key removed from the ignition switch Measure the voltage to ground: There should be 5 V or. more. Faulty ignition key switch A short to ground in the wire T31 BRN Driver door key cylinder switch unlocked Measure the voltage to ground: There should be less than 1 V. Poor ground (G501) Faulty driver door key cylinder switch An open in the wire Driver door key cylinder switch in neutral Measure the voltage to ground: There should be 5 V or more. Faulty driver door key cylinder switch A short to ground in the wire

Scheme 20

1. Remove the steering column upper and lower covers (see «COLUMN COVER REMOVAL/INSTALLATION»(/acura/rdx/i-2006-2009/remont/gauges-instrument-panels/#dashboard-instrument-panel__column-cover-removalinstallation) ).
2. Disconnect the 6P connector.
3. Check for continuity between the No. 1 and No. 2 terminals. There should be continuity with the key in the ignition switch. There should be no continuity with the key removed.
4. If the continuity is not as specified, replace the ignition KEY switch.

See also:
• TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A
• COLUMN COVER REMOVAL/INSTALLATION