This DTC is stored when the combination meter assembly detects an open in a front turn signal light circuit or rear turn signal light circuit.
If there is an open in a front turn signal light circuit or rear turn signal light circuit, the turn signal lights on the side with the open circuit will blink faster than usual.
If there is an open in a side turn signal light circuit, DTC B150718 will not be stored.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B150718 | Turn Signal Light Circuit Current Below Threshold | Diagnosis Condition:
Battery voltage is 10 V or more Malfunction Status: ·
Open in front turn signal light circuit ·
Open in rear turn signal light circuit |
for TFTM Made
·
Headlight assembly ·
Rear combination light assembly -
Rear combination light socket and wire*1 -
Rear turn signal light bulb*1 ·
Harness or connector ·
Combination meter assembly for GTMC Made
·
Headlight assembly ·
Rear combination light assembly -
Rear combination light socket and wire*2 -
Rear turn signal light bulb ·
Harness or connector ·
Combination meter assembly |
*1: for Bulb Type Turn Signal Light
*2: for LEVIN
except NR Series Engine (for TFTM Made)
for NR Series Engine (for TFTM Made)
except NR Series Engine (for GTMC Made)
for NR Series Engine (for GTMC Made)
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.
except NR Series Engine
When replacing the combination meter assembly, update the ECU security key.
Inspect the turn signal light bulbs before performing the following procedure.
Choose the model to be inspected.
| Result | Proceed to |
|---|---|
| for TFTM Made | A |
| for GTMC Made | B |
A
B
Choose the model to be inspected.
| Result | Proceed to |
|---|---|
| except NR Series Engine | A |
| for NR Series Engine | B |
A
B
Operate the turn signal switch and check the problem symptoms.
| Result | Proceed to |
|---|---|
| Front turn signal light (LH side) does not blink | A |
| Rear turn signal light (LH side) does not blink | B |
| Front turn signal light (RH side) does not blink | C |
| Rear turn signal light (RH side) does not blink | D |
A
B
C
D
Remove the headlight assembly LH.
Remove the headlight assembly RH.
Interchange the headlight assembly LH with RH and connect the connectors.
Check the front turn signal light (LH side) operates normally.
| Result | Proceed to |
|---|---|
| Problem symptoms do not change
(Front turn signal light (LH side) does not blink) |
A |
| Front turn signal light (LH side) operates normally | B |
A
B
Choose the model to be inspected.
| Result | Proceed to |
|---|---|
| for LED Type Turn Signal Light | A |
| for Bulb Type Turn Signal Light | B |
A
B
Disconnect the A166 headlight assembly LH connector.
Disconnect the I5 combination meter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A166-7 (B) - I5-5 (LL) | Always | Below 1 Ω |
| A166-4 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the A164 headlight assembly LH connector.
Disconnect the I5 combination meter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A164-1 (B) - I5-5 (LL) | Always | Below 1 Ω |
| A164-2 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Choose the model to be inspected.
| Result | Proceed to |
|---|---|
| for LED Type Turn Signal Light | A |
| for Bulb Type Turn Signal Light | B |
A
B
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the I5 combination meter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| O104-3 (B) - I5-22 (TRNL) | Always | Below 1 Ω |
| O104-4 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Remove the rear combination light socket and wire LH from the rear combination light assembly LH.
Remove the rear combination light socket and wire RH from the rear combination light assembly RH.
Interchange the rear combination light socket and wire LH with RH and connect the connectors.
Check the rear turn signal light (LH side) operates normally.
| Result | Proceed to |
|---|---|
| Problem symptoms do not change
(Rear turn signal light does not blink) |
A |
| Rear turn signal light (LH side) operates normally | B |
A
B
Remove the headlight assembly RH.
Remove the headlight assembly LH.
Interchange the headlight assembly RH with LH and connect the connectors.
Check the front turn signal light (RH side) operates normally.
| Result | Proceed to |
|---|---|
| Problem symptoms do not change
(Front turn signal light (RH side) does not blink) |
A |
| Front turn signal light (RH side) operates normally | B |
A
B
Choose the model to be inspected.
| Result | Proceed to |
|---|---|
| for LED Type Turn Signal Light | A |
| for Bulb Type Turn Signal Light | B |
A
B
Disconnect the A165 headlight assembly RH connector.
Disconnect the I5 combination meter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A165-7 (B) - I5-6 (LR) | Always | Below 1 Ω |
| A165-4 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the A163 headlight assembly RH connector.
Disconnect the I5 combination meter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A163-1 (B) - I5-6 (LR) | Always | Below 1 Ω |
| A163-2 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Choose the model to be inspected.
| Result | Proceed to |
|---|---|
| for LED Type Turn Signal Light | A |
| for Bulb Type Turn Signal Light | B |
A
B
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the I5 combination meter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| O103-3 (B) - I5-21 (TRNR) | Always | Below 1 Ω |
| O103-4 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Remove the rear combination light socket and wire RH from the rear combination light assembly RH.
Remove the rear combination light socket and wire LH from the rear combination light assembly LH.
Interchange the rear combination light socket and wire RH with LH and connect the connectors.
Check the rear turn signal light (RH side) operates normally.
| Result | Proceed to |
|---|---|
| Problem symptoms do not change
(Rear turn signal light does not blink) |
A |
| Rear turn signal light (RH side) operates normally | B |
A
B
Operate the turn signal switch and check the problem symptoms.
| Result | Proceed to |
|---|---|
| Front turn signal light (LH side) does not blink | A |
| Rear turn signal light (LH side) does not blink | B |
| Front turn signal light (RH side) does not blink | C |
| Rear turn signal light (RH side) does not blink | D |
A
B
C
D
Remove the headlight assembly LH.
Remove the headlight assembly RH.
Interchange the headlight assembly LH with RH and connect the connectors.
Check the front turn signal light (LH side) operates normally.
| Result | Proceed to |
|---|---|
| Problem symptoms do not change
(Front turn signal light (LH side) does not blink) |
A |
| Front turn signal light (LH side) operates normally | B |
A
B
Disconnect the A164 headlight assembly LH connector.
Disconnect the I5 combination meter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A164-1 (B) - I5-1 (LL) | Always | Below 1 Ω |
| A164-2 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Choose the model to be inspected.
| Result | Proceed to |
|---|---|
| for LED Type Turn Signal Light | A |
| for Bulb Type Turn Signal Light | B |
A
B
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the I5 combination meter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| O104-3 (B) - I5-5 (TRNL) | Always | Below 1 Ω |
| O104-4 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Remove the rear combination light socket and wire LH from the rear combination light assembly LH.
Remove the rear combination light socket and wire RH from the rear combination light assembly RH.
Interchange the rear combination light socket and wire LH with RH and connect the connectors.
Check the rear turn signal light (LH side) operates normally.
| Result | Proceed to |
|---|---|
| Problem symptoms do not change
(Rear turn signal light does not blink) |
A |
| Rear turn signal light (LH side) operates normally | B |
A
B
Remove the headlight assembly RH.
Remove the headlight assembly LH.
Interchange the headlight assembly RH with LH and connect the connectors.
Check the front turn signal light (RH side) operates normally.
| Result | Proceed to |
|---|---|
| Problem symptoms do not change
(Front turn signal light (RH side) does not blink) |
A |
| Front turn signal light (RH side) operates normally | B |
A
B
Disconnect the A163 headlight assembly RH connector.
Disconnect the I5 combination meter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A163-1 (B) - I5-2 (LR) | Always | Below 1 Ω |
| A163-2 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Choose the model to be inspected.
| Result | Proceed to |
|---|---|
| for LED Type Turn Signal Light | A |
| for Bulb Type Turn Signal Light | B |
A
B
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the I5 combination meter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| O103-3 (B) - I5-6 (TRNR) | Always | Below 1 Ω |
| O103-4 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Remove the rear combination light socket and wire RH from the rear combination light assembly RH.
Remove the rear combination light socket and wire LH from the rear combination light assembly LH.
Interchange the rear combination light socket and wire RH with LH and connect the connectors.
Check the rear turn signal light (RH side) operates normally.
| Result | Proceed to |
|---|---|
| Problem symptoms do not change
(Rear turn signal light does not blink) |
A |
| Rear turn signal light (RH side) operates normally | B |
A
B
Choose the model to be inspected.
| Result | Proceed to |
|---|---|
| except NR Series Engine | A |
| for NR Series Engine | B |
A
B
Operate the turn signal switch and check the problem symptoms.
| Result | Proceed to |
|---|---|
| Front turn signal light (LH side) does not blink | A |
| Rear turn signal light (LH side) does not blink | B |
| Front turn signal light (RH side) does not blink | C |
| Rear turn signal light (RH side) does not blink | D |
A
B
C
D
Remove the headlight assembly LH.
Remove the headlight assembly RH.
Interchange the headlight assembly LH with RH and connect the connectors.
Check the front turn signal light (LH side) operates normally.
| Result | Proceed to |
|---|---|
| Problem symptoms do not change
(Front turn signal light (LH side) does not blink) |
A |
| Front turn signal light (LH side) operates normally | B |
A
B
Disconnect the A168 headlight assembly LH connector.
Disconnect the I5 combination meter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A168-1 (B) - I5-5 (LL) | Always | Below 1 Ω |
| A168-5 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Choose the model to be inspected.
| Result | Proceed to |
|---|---|
| for LEVIN GT | A |
| for LEVIN | B |
A
B
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the O104 rear combination light assembly LH connector.
Disconnect the I5 combination meter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| O104-3 (B) - I5-22 (TRNL) | Always | Below 1 Ω |
| O104-4 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Remove the rear combination light socket and wire LH from the rear combination light assembly LH.
Remove the rear combination light socket and wire RH from the rear combination light assembly RH.
Interchange the rear combination light socket and wire LH with RH and connect the connectors.
Check the rear turn signal light (LH side) operates normally.
| Result | Proceed to |
|---|---|
| Problem symptoms do not change
(Rear turn signal light (LH side) does not blink) |
A |
| Rear turn signal light (LH side) operates normally | B |
A
B
Remove the headlight assembly RH.
Remove the headlight assembly LH.
Interchange the headlight assembly RH with LH and connect the connectors.
Check the front turn signal light (RH side) operates normally.
| Result | Proceed to |
|---|---|
| Problem symptoms do not change
(Front turn signal light (RH side) does not blink) |
A |
| Front turn signal light (RH side) operates normally | B |
A
B
Disconnect the A167 headlight assembly RH connector.
Disconnect the I5 combination meter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A167-1 (B) - I5-6 (LR) | Always | Below 1 Ω |
| A167-5 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Choose the model to be inspected.
| Result | Proceed to |
|---|---|
| for LEVIN GT | A |
| for LEVIN | B |
A
B
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the O103 rear combination light assembly RH connector.
Disconnect the I5 combination meter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| O103-3 (B) - I5-21 (TRNR) | Always | Below 1 Ω |
| O103-4 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Remove the rear combination light socket and wire RH from the rear combination light assembly RH.
Remove the rear combination light socket and wire LH from the rear combination light assembly LH.
Interchange the rear combination light socket and wire RH with LH and connect the connectors.
Check the rear turn signal light (RH side) operates normally.
| Result | Proceed to |
|---|---|
| Problem symptoms do not change
(Rear turn signal light (RH side) does not blink) |
A |
| Rear turn signal light (RH side) operates normally | B |
A
B
Operate the turn signal switch and check the problem symptoms.
| Result | Proceed to |
|---|---|
| Front turn signal light (LH side) does not blink | A |
| Rear turn signal light (LH side) does not blink | B |
| Front turn signal light (RH side) does not blink | C |
| Rear turn signal light (RH side) does not blink | D |
A
B
C
D
Remove the headlight assembly LH.
Remove the headlight assembly RH.
Interchange the headlight assembly LH with RH and connect the connectors.
Check the front turn signal light (LH side) operates normally.
| Result | Proceed to |
|---|---|
| Problem symptoms do not change
(Front turn signal light (LH side) does not blink) |
A |
| Front turn signal light (LH side) operates normally | B |
A
B
Disconnect the A168 headlight assembly LH connector.
Disconnect the I5 combination meter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A168-1 (B) - I5-1 (LL) | Always | Below 1 Ω |
| A168-5 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Choose the model to be inspected.
| Result | Proceed to |
|---|---|
| for LEVIN GT | A |
| for LEVIN | B |
A
B
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the O104 rear combination light assembly LH connector.
Disconnect the I5 combination meter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| O104-3 (B) - I5-5 (TRNL) | Always | Below 1 Ω |
| O104-4 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Remove the rear combination light socket and wire LH from the rear combination light assembly LH.
Remove the rear combination light socket and wire RH from the rear combination light assembly RH.
Interchange the rear combination light socket and wire LH with RH and connect the connectors.
Check the rear turn signal light (LH side) operates normally.
| Result | Proceed to |
|---|---|
| Problem symptoms do not change
(Rear turn signal light (LH side) does not blink) |
A |
| Rear turn signal light (LH side) operates normally | B |
A
B
Remove the headlight assembly RH.
Remove the headlight assembly LH.
Interchange the headlight assembly RH with LH and connect the connectors.
Check the front turn signal light (RH side) operates normally.
| Result | Proceed to |
|---|---|
| Problem symptoms do not change
(Front turn signal light (RH side) does not blink) |
A |
| Front turn signal light (RH side) operates normally | B |
A
B
Disconnect the A167 headlight assembly RH connector.
Disconnect the I5 combination meter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| A167-1 (B) - I5-2 (LR) | Always | Below 1 Ω |
| A167-5 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Choose the model to be inspected.
| Result | Proceed to |
|---|---|
| for LEVIN GT | A |
| for LEVIN | B |
A
B
| Proceed to |
|---|
| OK |
| NG |
OK
NG
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the O103 rear combination light assembly RH connector.
Disconnect the I5 combination meter assembly connector.
Measure the resistance according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| O103-3 (B) - I5-6 (TRNR) | Always | Below 1 Ω |
| O103-4 (E) - Body ground | Always | Below 1 Ω |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Remove the rear combination light socket and wire RH from the rear combination light assembly RH.
Remove the rear combination light socket and wire LH from the rear combination light assembly LH.
Interchange the rear combination light socket and wire RH with LH and connect the connectors.
Check the rear turn signal light (RH side) operates normally.
| Result | Proceed to |
|---|---|
| Problem symptoms do not change
(Rear turn signal light (RH side) does not blink) |
A |
| Rear turn signal light (RH side) operates normally | B |
A
B