Keyless/Power Door Locks/Security System (MICU) Input Test
NOTE:
If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.
Before testing, make sure the No. B21 (15 A) and No. B29 (10 A) fuses in the under-hood fuse/relay box is OK.
Before testing, make sure the No. C4 (15 A), No. C5 (15 A), No. C6 (10 A)*, No. C7 (10 A)*, No. C12 (15 A), and No. C13 (15 A) fuses in the under-dash fuse/relay box are OK.
Before testing, make sure the headlights, parking lights, side marker lights, taillights, and horns are work properly.
There are three pairs of fuses in the same circuit (No. C4 and No. C12 fuses, No. C5 and No. C13 fuses, and No. C6* and No. C7* fuses). If one fuse is blown, make sure to check the other fuse in the same circuit. If necessary, replace the blown fuse(s).

*: With security

1.
Turn the vehicle to the OFF (LOCK) mode.

2.
Disconnect under-dash fuse/relay box connectors A, D, F, G, H, N, Q, and R.

NOTE: All connector views are shown from the wire side of the female terminals.
3.
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 look OK, go to step 4.

4.
With the connectors 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.

NOTE: These are door lock actuator operation tests for keyless entry.

Cavity
Wire
Test condition
Test: Desired result
Possible cause if desired result
is not obtained
G6*1
BLU
Connect 12 volt battery power*5 and G6 (or G9), and terminal G9 (or G6) and ground with jumper wires.
Check actuator operation:
The driver's door lock actuator should LOCK (or UNLOCK).
Faulty driver's door lock actuator
An open or high resistance in the wire
G9*1
YEL
N16*2
PNK
Connect 12 volt battery power*5 and N16 (or N17), and terminal N17 (or N16) and ground with jumper wires.
Check actuator operation:
The driver's door lock actuator should LOCK (or UNLOCK).
Faulty driver's door lock actuator
An open or high resistance in the wire
N17*2
GRY
F2
PNK
Connect 12 volt battery power*5 and F2 (or F8), and terminal F8 (or F2) and ground with jumper wires.
Check actuator operation:
The front passenger's door lock actuator should LOCK (or UNLOCK).
Faulty front passenger's door lock actuator
An open or high resistance in the wire
F8
GRY
N7
BLU
Connect 12 volt battery power*5 and N7 (or N3), and terminal N3 (or N7) and ground with jumper wires.
Check actuator operation:
The left rear door lock actuator and tailgate lock actuator*3 should LOCK (or UNLOCK).
Faulty left rear door lock actuator
Faulty tailgate lock actuator*3
An open or high resistance in the wire
N3
YEL
N13
PNK
Connect 12 volt battery power*5 and N13 (or N14), and terminal N14 (or N13) and ground with jumper wires.
Check actuator operation:
The right rear door lock actuator should LOCK (or UNLOCK).
Faulty right rear door lock actuator
An open or high resistance in the wire
N14
GRY
N2*4
GRN
Connect 12 volt battery power*5 and N2 with jumper wire.
Check actuator operation:
The tailgate release actuator should UNLOCK.
Faulty tailgate release actuator
An open or high resistance in the wire
*1: Without selectable unlock
*2: With selectable unlock
*3: Without keyless access system
*4: With keyless access system
*5: Use a fused jumper wire with an appropriate amperage fuse.

5.
Reconnect the connectors to the under-dash fuse/relay box; 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 result
is not obtained
Q15
RED
Under all conditions
Measure the voltage to ground:
There should be battery voltage.
Blown No. B29 (10 A) fuse in the under-hood fuse/relay box
An open or high resistance in the wire
R2
YEL
Under all conditions
Measure the voltage to ground:
There should be battery voltage.
Blown No. D1-3 (50 A) fuse in the auxiliary under-dash fuse box
An open or high resistance in the wire
D23
BLK
In all power modes
Measure the voltage to ground:
There should be less than 0.2 V.
Poor ground (G401)
An open or high resistance in the ground wire
H1
BLK
In all power modes
Measure the voltage to ground:
There should be less than 0.2 V.
Poor ground (G401)
An open or high resistance in the ground wire
N6
BLK
In all power modes
Measure the voltage to ground:
There should be less than 0.2 V.
Poor ground (G501)
An open or high resistance in the ground wire
N38
BLK
In all power modes
Measure the voltage to ground:
There should be less than 0.2 V.
Poor ground (G501)
An open or high resistance in the ground wire
Q35*1
TAN
Hood closed
Measure the voltage to ground:
There should be less than 0.2 V.
Faulty security hood switch
Poor ground (G202) or an open in the ground wire
An open or high resistance in the wire
Hood open
Measure the voltage to ground:
There should be about 5 V.
Faulty security hood switch
A short to ground in the wire
N23
BRN
Driver's door open
Measure the voltage to ground:
There should be less than 0.2 V.
Faulty driver's door switch
Faulty driver's door switch ground
An open or high resistance in the wire
Driver's door closed
Measure the voltage to ground:
There should be about 5 V.
Faulty driver's door switch
A short to ground in the wire
D12
GRY
Driver's door lock switch in UNLOCK
Measure the voltage to ground:
There should be less than 0.2 V.
Faulty driver's door lock switch
Poor ground (G401) or an open in the ground wire
An open or high resistance in the wire
Driver's door lock switch in LOCK
Measure the voltage to ground:
There should be about 5 V.
Faulty driver's door lock switch
A short to ground in the wire
D17
GRN
Driver's door lock switch in LOCK
Measure the voltage to ground:
There should be less than 0.2 V.
Faulty driver's door lock switch
Poor ground (G401) or an open in the ground wire
An open or high resistance in the wire
Driver's door lock switch in UNLOCK
Measure the voltage to ground:
There should be about 5 V.
Faulty driver's door lock switch
A short to ground in the wire
D10*1
RED
Driver's door key cylinder switch in neutral or UNLOCK
Measure the voltage to ground:
There should be less than 0.2 V.
Faulty driver's door key cylinder switch
Poor ground (G401) or an open in the ground wire
An open or high resistance in the wire
Driver's door key cylinder switch in LOCK
Measure the voltage to ground:
There should be about 5 V.
Faulty driver's door key cylinder switch
A short to ground in the wire
D11*1
WHT
Driver's door key cylinder switch in LOCK
Measure the voltage to ground:
There should be less than 0.2 V.
Faulty driver's door key cylinder switch
Poor ground (G401) or an open in the ground wire
An open or high resistance in the wire
Driver's door key cylinder switch in neutral or UNLOCK
Measure the voltage to ground:
There should be about 5 V.
Faulty driver's door key cylinder switch
A short to ground in the wire
D15
WHT
Driver's door lock knob switch in UNLOCK
Measure the voltage to ground:
There should be less than 0.2 V.
Faulty driver's door lock knob switch
Poor ground (G401) or an open in the ground wire
An open or high resistance in the wire
Driver's door lock knob switch in LOCK
Measure the voltage to ground:
There should be about 5 V.
Faulty driver's door key cylinder switch
An open or high resistance in the wire
D3
LT GRN
Driver's door lock knob switch in LOCK
Measure the voltage to ground:
There should be less than 0.2 V.
Faulty driver's door lock knob switch
Poor ground (G401) or an open in the ground wire
An open or high resistance in the wire
Driver's door lock knob switch in UNLOCK
Measure the voltage to ground:
There should be about 5 V.
Faulty driver's door lock knob switch
A short to ground in the wire
N34
GRN
Front passenger's door open
Measure the voltage to ground:
There should be less than 0.2 V.
Faulty front passenger's door switch
Faulty front passenger's door switch ground
An open or high resistance in the wire
Front passenger's door closed
Measure the voltage to ground:
There should be about 5 V.
Faulty front passenger's door switch
A short to ground in the wire
A4*1
WHT
Front passenger's door lock knob switch in UNLOCK
Measure the voltage to ground:
There should be less than 0.2 V.
Faulty front passenger's door lock knob switch
Poor ground (G403) or an open in the ground wire
An open or high resistance in the wire
Front passenger's door lock knob switch in UNLOCK
Measure the voltage to ground:
There should be about 5 V.
Faulty front passenger's door lock knob switch
A short to ground in the wire
N39
GRY
Left rear door open
Measure the voltage to ground:
There should be less than 0.2 V.
Faulty left rear door switch
Faulty left rear door switch ground
An open or high resistance in the wire
Left rear door closed
Measure the voltage to ground:
There should be about 5 V.
Faulty left rear door switch
A short to ground in the wire
N37
WHT
Right rear door open
Measure the voltage to ground:
There should be less than 0.2 V.
Faulty right rear door switch
Faulty right rear door switch ground
An open or high resistance in the wire
Right rear door closed
Measure the voltage to ground:
There should be about 5 V.
Faulty right rear door switch
A short to ground in the wire
N27*1
GRY
Left rear door lock knob switch in UNLOCK
Measure the voltage to ground:
There should be less than 0.2 V.
Faulty left rear door lock knob switch
Poor ground (G501) or an open in the ground wire
An open or high resistance in the wire
Left rear door lock knob switch in LOCK
Measure the voltage to ground:
There should be about 5 V.
Faulty left rear door lock knob switch
A short to ground in the wire
N52*1
TAN
Right rear door lock knob switch in UNLOCK
Measure the voltage to ground:
There should be less than 0.2 V.
Faulty right rear door lock knob switch
Poor ground (G602) or an open in the ground wire
An open or high resistance in the wire
Right rear door lock knob switch in LOCK
Measure the voltage to ground:
There should be about 5 V.
Faulty right rear door lock knob switch
A short to ground in the wire
N26
PNK
Tailgate latch switch pressed
Measure the voltage to ground:
There should be less than 0.2 V.
Faulty tailgate latch switch
Poor ground (G503) or an open in the ground wire
An open or high resistance in the wire
Tailgate latch switch released
Measure the voltage to ground:
There should be about 5 V.
Faulty tailgate latch switch
A short to ground in the wire
D4*2
PNK
Ignition key inserted into the ignition key cylinder
Measure the voltage to ground:
There should be less than 0.2 V.
Faulty ignition key switch
Poor ground (G401) or an open in the ground wire
An open or high resistance in the wire
Ignition key removed from the ignition key cylinder
Measure the voltage to ground:
There should be about 5 V.
Faulty ignition key switch
A short to ground in the wire
D4*3
PNK
Disconnect the keyless access control unit connector A (32P)
Check for continuity between terminal D4 and keyless access control unit connector A (32P) terminal No. 2:
There should be continuity.
An open or high resistance in the wire
Q22*4
RED
Transmission range switch in P
Measure the voltage to ground:
There should be less than 0.2 V.
Faulty or improperly adjusted transmission range switch
Poor ground (G101) or an open in the ground wire
An open or high resistance in the wire
Transmission range switch in any other position than P
Measure the voltage to ground:
There should be about 5 V.
A short to ground in the wire
Faulty or improperly adjusted transmission range switch
*1: With security
*2: Without keyless access system
*3: With keyless access system
*4: CVT