DTC B1508-19: Turn Signal/Hazard Flasher Circuit Current Above Threshold [04/2018 - 08/2019]: Description

WARNING: This page is about a different car, the 2022 Toyota Avalon, 2021 Toyota Avalon, 2020 Toyota Avalon, and 2019 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

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	Memory	Note
B1508-19	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	Harness or connector Headlight assembly Headlight ECU sub-assembly* Side turn signal light assembly Outer rear view mirror sub-assembly Rear combination light assembly Rear light assembly* Rear combination light socket and wire Rear light cord* Combination meter assembly	DTC stored	-

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Memory

Note

B1508-19

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

Harness or connector
Headlight assembly
Headlight ECU sub-assembly*
Side turn signal light assembly
Outer rear view mirror sub-assembly
Rear combination light assembly
Rear light assembly*
Rear combination light socket and wire
Rear light cord*
Combination meter assembly

DTC stored

*: w/ Cornering Light