Reminder Systems (MICU) (2013 2014 2015)
NOTE:
- Refer to the Electrical Wiring Diagrams for the location of the under-dash fuse/relay box connectors.
- Before testing, troubleshoot the multiplex integrated control unit first, using B-CAN System Diagnosis Test Mode A .
- Before testing, do the gauge control module self-diagnostic function to make sure the beeper and the indicators in the gauge control module work properly and the F-CAN line are OK.
- Before testing, make sure the No. A29 (10 A) fuse in the under-hood fuse/relay box is OK.
- Before testing, make sure the No. B5 (7.5 A) fuse in the under-dash fuse/relay box is OK.
1. Press the engine start/stop button to select the OFF mode.
2. Disconnect under-dash fuse/relay box connectors B, P, T, and W
.NOTE: All connector views are shown from the wire side of the female terminals.
Inspect the connectors 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.
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 .
| Cavity | Wire | Test condition | Test: Desired result | Possible cause if desired resultis not obtained |
|---|---|---|---|---|
| W6 | BLK | In all power modes | Measure the voltage to ground:There should be less than 0.2 V. |
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| B32 | BLK | In all power modes | Measure the voltage to ground:There should be less than 0.2 V. |
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| B40 | GRN | Driver's door open | Measure the voltage to ground:There should be less than 0.2 V. |
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| Driver's door closed | Measure the voltage to ground:There should be about 5 V. |
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| B29 | LT GRN | Front passenger's door open | Measure the voltage to ground:There should be less than 0.2 V. |
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| Front passenger's door closed | Measure the voltage to ground:There should be about 5 V. |
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| B33 | BRN | Left rear door open | Measure the voltage to ground:There should be less than 0.2 V. |
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| Left rear door closed | Measure the voltage to ground:There should be about 5 V. |
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| B34 | GRY | Right rear door open | Measure the voltage to ground:There should be less than 0.2 V. |
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| Right rear door closed | Measure the voltage to ground:There should be about 5 V. |
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| B22 | BLU | Trunk open | Measure the voltage to ground:There should be less than 0.2 V. |
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| Trunk closed | Measure the voltage to ground:There should be about 5 V. |
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| P11 | PNK | Disconnect power control unit connector C (36P) | Check for continuity between terminal P11 and power control unit connector C (36P) terminal No. 5: There should be continuity. | An open or high resistance in the wire |
| Cavity | Wire | Test condition | Test: Desired result | Possible cause if desired resultis not obtained |
|---|---|---|---|---|
| T1.T5 | ORN.BLK | Combination light switch OFF | Measure the voltage between terminals T1 and T5:There should be less than 0.2 V. |
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| Combination light switch in any position other than OFF | Measure the voltage between terminals T1 and T5:There should be about 5 V. |
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| T3.T5 | GRY.BLK | Combination light switch (PARKING position) ON | Measure the voltage between terminals T3 and T5:There should be less than 0.2 V. |
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| Combination light switch OFF | Measure the voltage between terminals T3 and T5:There should be about 5 V. |
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| 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. |
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| Combination light switch OFF | Measure the voltage between terminals T2 and T5:There should be about 5 V. |
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