Last Modified: 07-31-2024 |
6.11:8.1.0 |
Doc ID: RM100000001G708 |
Model Year Start: 2020 |
Model: Corolla |
Prod Date Range: [01/2019 - 09/2022] |
Title: METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM (for HV Model): B150819; Turn Signal/Hazard Flasher Circuit Current Above Threshold; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022] |
DTC
|
B150819
|
Turn Signal/Hazard Flasher Circuit Current Above Threshold
|
DESCRIPTION
This DTC is stored when the combination meter assembly detects a short in a turn signal light circuit.
HINT:
If there is a short in a turn signal light circuit, all of the turn signal lights in that circuit will not blink.
DTC No.
|
Detection Item
|
DTC Detection Condition
|
Trouble Area
|
B150819
|
Turn Signal/Hazard Flasher Circuit Current Above Threshold
|
Diagnosis Condition:
-
Auxiliary battery voltage is 10 V or more
Malfunction Status:
-
Short in turn signal light circuit
|
-
Headlight unit assembly
-
Outer rear view mirror assembly*
-
Side turn signal light assembly*
-
Rear combination light cord
-
Rear turn signal light bulb
-
Harness or connector
-
Combination meter assembly
|
-
*: w/ Side Turn Signal Light
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
-
When replacing the combination meter assembly, always replace it with a new one. If a combination meter assembly which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
-
Inspect the turn signal light bulbs before performing the following procedure.
PROCEDURE
(a) Check the problem symptoms.
Result
|
Proceed to
|
All LH side turn signal lights do not blink
|
A
|
All RH side turn signal lights do not blink
|
B
|
A
|
|
|
2.
|
CHECK LH SIDE TURN SIGNAL LIGHTS (FRONT TURN SIGNAL LIGHT CIRCUIT)
|
(a) Disconnect the A83 headlight assembly LH connector.
(b) Operate the turn signal switch and check that the LH side turn signal lights other than the front turn signal light blink.
HINT:
If the LH side turn signal lights other than the front turn signal light blink, the headlight unit assembly LH is malfunctioning.
Result
|
Proceed to
|
LH side turn signal lights other than the front turn signal light blink
|
A
|
Problem symptoms do not change
(All LH side turn signal lights do not blink)
(w/ Side Turn Signal Light)
|
B
|
Problem symptoms do not change
(All LH side turn signal lights do not blink)
(w/o Side Turn Signal Light)
|
C
|
B
|
|
|
3.
|
CHECK LH SIDE TURN SIGNAL LIGHTS (SIDE TURN SIGNAL LIGHT CIRCUIT)
|
(a) Connect the headlight assembly LH connector.
(b) Disconnect the L9 outer rear view mirror assembly LH connector.
(c) Operate the turn signal switch and check that the LH side turn signal lights other than the side turn signal light blink.
HINT:
If the LH side turn signal lights other than the side turn signal light blink, a component of the outer rear view mirror assembly LH is malfunctioning.
Result
|
Proceed to
|
LH side turn signal lights other than the side turn signal light blink
|
A
|
Problem symptoms do not change
(All LH side turn signal lights do not blink)
|
B
|
A
|
|
|
4.
|
CHECK LH SIDE TURN SIGNAL LIGHTS (OUTER REAR VIEW MIRROR ASSEMBLY LH)
|
(a) Remove the side turn signal light assembly LH from outer rear view mirror assembly LH.
Click here
(b) Connect the wire harness connector to the outer rear view mirror assembly LH connector.
(c) Operate the turn signal switch and check that the LH side turn signal lights other than the side turn signal light blink.
HINT:
If all LH side turn signal lights do not blink, the outer rear view mirror assembly LH is malfunctioning.
Result
|
Proceed to
|
LH side turn signal lights other than the side turn signal light blink
|
A
|
All LH side turn signal lights do not blink
|
B
|
5.
|
CHECK LH SIDE TURN SIGNAL LIGHTS (REAR TURN SIGNAL LIGHT CIRCUIT)
|
(a) Connect the outer rear view mirror assembly LH connector.*1
(b) Connect the headlight assembly LH connector.*2
(c) Disconnect the O104 rear combination light assembly LH connector.
(d) Operate the turn signal switch and check that the LH side turn signal lights other than the rear turn signal light blink.
HINT:
If the LH side turn signal lights other than the rear turn signal light blink, the rear combination light cord LH is malfunctioning.
-
*1: w/ Side Turn Signal Light
-
*2: w/o Side Turn Signal Light
Result
|
Proceed to
|
LH side turn signal lights other than the rear turn signal light blink
|
A
|
Problem symptoms do not change
(All LH side turn signal lights do not blink)
|
B
|
B
|
|
|
6.
|
CHECK HARNESS AND CONNECTOR (LH SIDE EACH PARTS - COMBINATION METER ASSEMBLY)
|
(a) Disconnect the A83 headlight assembly LH connector.
(b) Disconnect the L9 outer rear view mirror assembly LH connector.*
(c) Disconnect the I5 combination meter assembly connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A83-2 (B), L9-5 (B)* or I5-1 (LL) - Body ground
|
Always
|
10 kΩ or higher
|
O104-3 (B) or I5-5 (TRNL) - Body ground
|
Always
|
10 kΩ or higher
|
-
*: w/ Side Turn Signal Light
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
7.
|
CHECK RH SIDE TURN SIGNAL LIGHTS (FRONT TURN SIGNAL LIGHT CIRCUIT)
|
(a) Disconnect the A82 headlight assembly RH connector.
(b) Operate the turn signal switch and check that the RH side turn signal lights other than the front turn signal light blink.
HINT:
If the RH side turn signal lights other than the front turn signal light blink, the headlight unit assembly RH is malfunctioning.
Result
|
Proceed to
|
RH side turn signal lights other than the front turn signal light blink
|
A
|
Problem symptoms do not change
(All RH side turn signal lights do not blink)
(w/ Side Turn Signal Light)
|
B
|
Problem symptoms do not change
(All RH side turn signal lights do not blink)
(w/o Side Turn Signal Light)
|
C
|
B
|
|
|
8.
|
CHECK RH SIDE TURN SIGNAL LIGHTS (SIDE TURN SIGNAL LIGHT CIRCUIT)
|
(a) Connect the headlight assembly RH connector.
(b) Disconnect the K10 outer rear view mirror assembly RH connector.
(c) Operate the turn signal switch and check that the RH side turn signal lights other than the side turn signal light blink.
HINT:
If the RH side turn signal lights other than the side turn signal light blink, a component of the outer rear view mirror assembly RH is malfunctioning.
Result
|
Proceed to
|
RH side turn signal lights other than the side turn signal light blink
|
A
|
Problem symptoms do not change
(All RH side turn signal lights do not blink)
|
B
|
A
|
|
|
9.
|
CHECK RH SIDE TURN SIGNAL LIGHTS (OUTER REAR VIEW MIRROR ASSEMBLY RH)
|
(a) Remove the side turn signal light assembly RH from outer rear view mirror assembly RH.
Click here
(b) Connect the wire harness connector to the outer rear view mirror assembly RH connector.
(c) Operate the turn signal switch and check that the RH side turn signal lights other than the side turn signal light blink.
HINT:
If all RH side turn signal lights do not blink, the outer rear view mirror assembly RH is malfunctioning.
Result
|
Proceed to
|
RH side turn signal lights other than the side turn signal light blink
|
A
|
All RH side turn signal lights do not blink
|
B
|
10.
|
CHECK RH SIDE TURN SIGNAL LIGHTS (REAR TURN SIGNAL LIGHT CIRCUIT)
|
(a) Connect the outer rear view mirror assembly RH connector.*1
(b) Connect the headlight assembly RH connector.*2
(c) Disconnect the O103 rear combination light assembly RH connector.
(d) Operate the turn signal switch and check that the RH side turn signal lights other than the rear turn signal light blink.
HINT:
If the RH side turn signal lights other than the rear turn signal light blink, the rear combination light cord RH is malfunctioning.
-
*1: w/ Side Turn Signal Light
-
*2: w/o Side Turn Signal Light
Result
|
Proceed to
|
RH side turn signal lights other than the rear turn signal light blink
|
A
|
Problem symptoms do not change
(All RH side turn signal lights do not blink)
|
B
|
B
|
|
|
11.
|
CHECK HARNESS AND CONNECTOR (RH SIDE EACH PARTS - COMBINATION METER ASSEMBLY)
|
(a) Disconnect the A82 headlight assembly RH connector.
(b) Disconnect the K10 outer rear view mirror assembly RH connector.*
(c) Disconnect the I5 combination meter assembly connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
A82-2 (B), K10-5 (B)* or I5-2 (LR) - Body ground
|
Always
|
10 kΩ or higher
|
O103-3 (B) or I5-6 (TRNR) - Body ground
|
Always
|
10 kΩ or higher
|
-
*: w/ Side Turn Signal Light
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|