Turn Signal/Hazard Warning Lights (MICU) Input Test
NOTE:
Before testing, check for DTCs. If any DTCs are indicated, troubleshoot those DTCs first.
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. A11 (15 A) and No. A21 (10 A) fuses in the under-hood fuse/relay box are OK.
Before testing, make sure the No. B5 (7.5 A) fuse in the under-dash fuse/relay box is OK.

1.
Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.

2.
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 are 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 the terminals are OK, go to step 5.

Cavity
Wire
Test condition
Test: Desired result
Possible cause if desired result
is not obtained
M9
BLU
Connect terminals M9 and E2 with a jumper wire
Check the turn signal lights operation:
The left turn signal indicator and left side turn signal light should come on.
Faulty gauge control module
Faulty LED
An open or high resistance in the wire
Poor ground (G501) or an open in the ground wire
M6
GRN
Connect terminals M6 and E2 with a jumper wire
Check the turn signal lights operation:
The right turn signal indicator and right side turn signal light should come on.
Faulty gauge control module
Faulty LED
An open or high resistance in the wire
Poor ground (G506) or an open in the ground wire
E4
BLU
Connect terminals E4 and E2 with a jumper wire
Check the turn signal lights operation:
The left front turn signal light should come on.
Blown bulb*1
Faulty LED*2
Poor ground (G301) or an open in the ground wire
An open or high resistance in the wire
F10
GRN
Connect terminals F10 and E2 with a jumper wire
Check the turn signal lights operation:
The right front turn signal light should come on.
Blown bulb*1
Faulty LED*2
Poor ground (G201) or an open in the ground wire
An open or high resistance in the wire
P7*2
GRY
Disconnect the left headlight 8P connector
Check for continuity between terminal P7 and left headlight 8P connector terminal No. 7:
There should be continuity.
An open or high resistance in the ground wire
P8*2
LT BLU
Disconnect the left headlight 8P connector
Check for continuity between terminal P8 and right headlight 8P connector terminal No. 7:
There should be continuity.
An open or high resistance in the ground wire
D20
BLU
Connect terminals D20 and E2 with a jumper wire
Check the turn signal lights operation:
The left rear turn signal light should come on.
Blown bulb
Poor ground (G603) or an open in the ground wire
An open or high resistance in the wire
D34
GRN
Connect terminals D34 and E2 with a jumper wire
Check the turn signal lights operation:
The right rear turn signal light should come on.
Blown bulb
Poor ground (G603) or an open in the ground wire
An open or high resistance in the wire
*1: Without LED headlight
*2: With LED headlight

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
E2
WHT
Under all conditions
Measure the voltage to ground:
There should be battery voltage.
Blown No. A11 (15 A) fuse in the under-hood fuse/relay box
Faulty under-hood fuse/relay box
An open or high resistance in the wire
E23
WHT
Under all conditions
Measure the voltage to ground:
There should be battery voltage.
Blown No. A21 (10 A) fuse in the under-hood fuse/relay box
Faulty under-hood fuse/relay box
An open or high resistance in the wire
D30
BLK
Ignition switch to ON (II), or power mode ON
Measure the voltage to ground:
There should be less than 0.2 V.
Poor ground (G601)
An open or high resistance in the ground wire
P1
BLK
Ignition switch to ON (II), or power mode ON
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
K4
WHT
Under all conditions
Measure the voltage to ground:
There should be battery voltage.
Blown No. A11 (15 A) fuse in the under-hood fuse box
Faulty under-hood fuse/relay box
Faulty under-dash fuse/relay box
An open or high resistance in the wire
K3
GRN
Hazard warning switch pressed
Measure the voltage to ground:
There should be battery voltage.
Faulty hazard warning switch
An open or high resistance in the wire
N15
·
N1
LT GRN
·
BLK
Turn signal switch in left position
Measure the voltage between terminals N15 and N1:
There should be less than 0.2 V.
Faulty turn signal switch
An open or high resistance in the wire
Turn signal switch in right or neutral position
Measure the voltage between terminals N15 and N1:
There should be about 5 V.
Faulty turn signal switch
A short to ground in the wire
N14
·
N1
RED
·
BLK
Turn signal switch in right position
Measure the voltage between terminals N14 and N1:
There should be less than 0.2 V.
Faulty turn signal switch
An open or high resistance in the wire
Turn signal switch in left or neutral position
Measure the voltage between terminals N14 and N1:
There should be about 5 V.
Faulty turn signal switch
A short to ground in the wire