( TL19E00J46643441953FCAT00 )

Keyless/Power Door Locks/Security System (Driver's and Passenger's MICU, Door Multiplex Control Unit, and Front Passenger's Power Window Switch) Input Test

NOTE: Before testing, make sure the turn signal/hazard warning lights work properly.
Driver's MICU

1. Turn the ignition switch to LOCK (0).

1. Remove the driver's dashboard undercover, then remove the dashboard lower cover.

1. Disconnect driver's under-dash fuse/relay box connectors D, E, F, G, N, Q, and R.
   NOTE: All connector views are wire side of female terminals.

1. 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 .

1. With the connectors still disconnected, 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, go to Step 6 .
   NOTE: Before testing, make sure the No. 15 (10 A) fuse in the under-hood fuse/relay box.

   Cavity | Wire | Test condition | Test: Desired result | Possible cause if desired result is not obtained
   --- | --- | --- | --- | ---

   D8

   BLK

   Under all conditions

   Check for continuity to ground: There should be continuity.

   - Poor ground (G601)
   - An open in the wire

   Q1

   BLK

   Under all conditions

   Check for continuity to ground: There should be continuity.

   - Poor ground (G502)
   - An open in the wire

   Q2

   BRN

   Under all conditions

   Check for continuity to ground: There should be continuity.

   - Poor ground (G501)
   - An open in the wire

   R2

   BRN

   Under all conditions

   Check for continuity to ground: There should be continuity.

   - Poor ground (G501)
   - An open in the wire

   R5

   BLK

   Under all conditions

   Check for continuity to ground: There should be continuity.

   - Poor ground (G502)
   - An open in the wire

   D2

   YEL

   Connect N9 and D2 (or D9) terminals, and D9 (or D2) terminal to ground.

   Check actuator operation: The left [right] rear door lock actuator should unlock (or lock).

   - Faulty left [right] rear door lock actuator
   - An open in the wire

   D9 | ORN [BLU]

   D16

   ORN

   Connect N9 and D16 terminals momentarily

   Check actuator operation: The trunk lid release actuator should work.

   - Poor ground (G901)
   - Faulty trunk lid release actuator
   - An open in the wire

   F23

   GRY

   Under all conditions

   Attach to ground: The horns should sound.

   - Blown No. 10 (10 A) fuse in the under-hood fuse/relay box
   - Faulty horn relay
   - Faulty horn
   - An open in the wire

   N1

   YEL [PNK]

   Connect N9 and N1 (or N2) terminals, and N2 (or N1) terminal to ground.

   Check actuator operation: The driver's door lock actuator should unlock (or lock).

   - Faulty driver's door lock actuator
   - An open in the wire

   N2 | ORN [RED]

   [ ]: | RHD model

   Cavity | Wire | Test condition | Test: Desired result | Possible cause if desired result is not obtained
   --- | --- | --- | --- | ---

   N1(LHD model)

   YEL

   Connect N9 and N1 (or D9) terminals, and D9 (or N1) terminal to body ground.

   Check actuator operation: The fuel fill door lock actuator should unlock (or lock).

   - Faulty fuel fill door lock actuator
   - An open in the wire

   D9(LHD model) | ORN

   N1(RHD model)

   PNK

   Connect N9 and N1 (or N2) terminals, and N2 (or N1) terminal to body ground.

   Check actuator operation: The fuel fill door lock actuator should unlock (or lock).

   - Faulty fuel fill door lock actuator
   - An open in the wire

   N2(RHD model) | RED

   [E14]

   WHT

   Under all conditions

   Measure the voltage to ground: The should be battery voltage.

   - Blown No. 15 (10 A) fuse in the under-hood fuse/relay box
   - An open in the wire

   [Q9] | ORN | Under all conditions | Check for continuity between the Q9 terminal and No. 3 terminal of the alarm control siren: The should be continuity. | An open in the wire

   [ ]: | KE, KN model

1. Reconnect the connectors to the driver's under-dash fuse/relay box, 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, go to Step 7 .

   Cavity | Wire | Test condition | Test: Desired result | Possible cause if desired result is not obtained
   --- | --- | --- | --- | ---

   E3

   PNK

   Trunk lid outer handle press

   Measure the voltage to ground: There should be less than 1 V.

   - Faulty trunk lid outer handle switch
   - An open in the wire
   - Poor ground (G901)

   Trunk lid outer handle release

   Measure the voltage to ground: There should be more than 5 V.

   - Faulty trunk lid outer handle switch
   - A short to ground in the wire

Cavity | Wire | Test condition | Test: Desired result | Possible cause if desired result is not obtained
--- | --- | --- | --- | ---

D4

LT GRN

Left [right] rear door open

Measure the voltage to ground: There should be less than 1 V.

- Faulty left [right] rear door switch
- An open in the wire

Left [right] rear door closed

Measure the voltage to ground: There should be more than 5 V.

- Faulty left [right] rear door switch
- A short to ground in the wire

D5

WHT

Trunk lid open, remove the trunk light bulb

Measure the voltage to ground: There should be less than 1 V.

- Faulty trunk lid latch switch
- An open in the wire

Trunk lid closed, remove the trunk light bulb

Measure the voltage to ground: There should be more than 5 V.

- Faulty trunk lid latch switch
- A short to ground in the wire

D12

BRN [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 more than 5 V.

- Faulty driver's door switch
- A short to ground in the wire

D15 *1

GRY [GRN]

Left [right] rear door lock knob switch in UNLOCK

Measure the voltage to ground: There should be less than 1 V.

- Poor ground (G601)
- Faulty left [right] rear door lock knob switch
- An open in the wire

Left [right] rear door lock knob switch in LOCK

Measure the voltage to ground: There should be battery voltage.

- Faulty left [right] rear door lock knob switch
- A short to ground in the wire

G3 *1

GRN/BLK

Hood open

Measure the voltage to ground: There should be less than 1 V.

- Poor ground (G302)
- Faulty hood switch
- An open in the wire

Hood closed

Measure the voltage to ground: There should be more than 5 V.

- Faulty hood switch
- A short to ground in the wire

Q18

WHT

Ignition key inserted into the ignition switch

Measure the voltage to ground: There should be less than 1 V.

- Faulty ignition key switch
- An open in the wire
- Poor ground (G503)

Ignition switch LOCK (0), and the ignition key removed from the ignition switch

Measure the voltage to ground: There should be more than 5 V.

- Faulty ignition key switch
- A short to ground in the wire

[ ]: | RHD model
*1: | With security