Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Diagnostic Trouble Code Chart

DIAGNOSTIC TROUBLE CODE CHART

If a DTC is displayed during the DTC check, check the circuit listed for the DTC in the table below (refer to the appropriate page).

HINT:

  • When the SRS warning light remains on and the normal system code is output, a decrease in the source voltage is likely to occur. This malfunction is not stored in the memory of the airbag sensor assembly. If the power source voltage returns to normal, the SRS warning light will automatically go off.
  • When 2 or more DTCs are indicated, the DTC with the lowest number appears first.
  • If a DTC is not listed on the DTC chart, the airbag sensor may have malfunctioned.
  • In the case of any malfunctions concerning open circuits, shorts to ground, or shorts to B+ due to squibs, other DTCs may not be set. In this case, repair the malfunction currently indicated and then perform malfunction diagnosis again.
  • Mark in the check mode column:

    *1: DTC does not correspond to check mode.

    *2: DTC corresponds to check mode.

  • When DTC B1650/32 is set as a result of troubleshooting the Supplemental Restraint System (SRS), perform troubleshooting for the occupant classification system.
Airbag Sensor Assembly

DTC Code

Detection Item

Check Mode

SRS Warning Light

See page

B1000/31

Center Airbag Sensor Assembly Malfunction

*1

ON

B1610/13

Front Airbag Sensor RH Circuit Malfunction

*1

ON

B1615/14

Front Airbag Sensor LH Circuit Malfunction

*1

ON

B1620/21

Side Airbag Sensor RH Circuit Malfunction

*1

ON

B1625/22

Side Airbag Sensor LH Circuit Malfunction

*1

ON

B1630/23

Rear Airbag Sensor RH Circuit Malfunction

*1

ON

B1635/24

Rear Airbag Sensor LH Circuit Malfunction

*1

ON

B1650/32

Occupant Classification System Malfunction

*1

ON

B1653/35

Seat Position Airbag Sensor Circuit Malfunction

*1

ON

B1656/38

Seat Belt Buckle Switch LH Circuit Malfunction

*1

ON

B1660/43

Passenger Airbag ON/OFF Indicator Circuit Malfunction

*1

ON

B1800/51

Short in Driver Side Squib Circuit

*2

ON

B1801/51

Open in Driver Side Squib Circuit

*2

ON

B1802/51

Short to GND in Driver Side Squib Circuit

*2

ON

B1803/51

Short to B+ in Driver Side Squib Circuit

*2

ON

B1805/52

Short in Front Passenger Side Squib Circuit

*2

ON

B1806/52

Open in Front Passenger Side Squib Circuit

*2

ON

B1807/52

Short to GND in Front Passenger Side Squib Circuit

*2

ON

B1808/52

Short to B+ in Front Passenger Side Squib Circuit

*2

ON

B1810/53

Short in Driver Side Squib 2nd Step Circuit

*2

ON

B1811/53

Open in Driver Side Squib 2nd Step Circuit

*2

ON

B1812/53

Short to GND in Driver Side Squib 2nd Step Circuit

*2

ON

B1813/53

Short to B+ in Driver Side Squib 2nd Step Circuit

*2

ON

B1815/54

Short in Front Passenger Side Squib 2nd Step Circuit

*2

ON

B1816/54

Open in Front Passenger Side Squib 2nd Step Circuit

*2

ON

B1817/54

Short to GND in Front Passenger Side Squib 2nd Step Circuit

*2

ON

B1818/54

Short to B+ in Front Passenger Side Squib 2nd Step Circuit

*2

ON

B181A/7A

Short in Passenger Side Airbag Variable Vent Hole Squib Circuit

*2

ON

B181B/7A

Open in Passenger Side Airbag Variable Vent Hole Squib Circuit

*2

ON

B181C/7A

Short to GND in Passenger Side Airbag Variable Vent Hole Squib Circuit

*2

ON

B181D/7A

Short to B+ in Passenger Side Airbag Variable Vent Hole Squib Circuit

*2

ON

B1820/55

Short in Side Squib RH Circuit

*2

ON

B1821/55

Open in Side Squib RH Circuit

*2

ON

B1822/55

Short to GND in Side Squib RH Circuit

*2

ON

B1823/55

Short to B+ in Side Squib RH Circuit

*2

ON

B1825/56

Short in Side Squib LH Circuit

*2

ON

B1826/56

Open in Side Squib LH Circuit

*2

ON

B1827/56

Short to GND in Side Squib LH Circuit

*2

ON

B1828/56

Short to B+ in Side Squib LH Circuit

*2

ON

B1830/57

Short in Curtain Shield Squib RH Circuit

*2

ON

B1831/57

Open in Curtain Shield Squib RH Circuit

*2

ON

B1832/57

Short to GND in Curtain Shield Squib RH Circuit

*2

ON

B1833/57

Short to B+ in Curtain Shield Squib RH Circuit

*2

ON

B1835/58

Short in Curtain Shield Squib LH Circuit

*2

ON

B1836/58

Open in Curtain Shield Squib LH Circuit

*2

ON

B1837/58

Short to GND in Curtain Shield Squib LH Circuit

*2

ON

B1838/58

Short to B+ in Curtain Shield Squib LH Circuit

*2

ON

B1860/64

Short in Driver Side Knee Airbag Squib Circuit

*2

ON

B1861/64

Open in Driver Side Knee Airbag Squib Circuit

*2

ON

B1862/64

Short to GND in Driver Side Knee Airbag Squib Circuit

*2

ON

B1863/64

Short to B+ in Driver Side Knee Airbag Squib Circuit

*2

ON

B1865/65

Short in Front Passenger Side Knee Airbag Squib Circuit

*2

ON

B1866/65

Open in Front Passenger Side Knee Airbag Squib Circuit

*2

ON

B1867/65

Short to GND in Front Passenger Side Knee Airbag Squib Circuit

*2

ON

B1868/65

Short to B+ in Front Passenger Side Knee Airbag Squib Circuit

*2

ON

B1900/73

Short in Front Pretensioner Squib RH Circuit

*2

ON

B1901/73

Open in Front Pretensioner Squib RH Circuit

*2

ON

B1902/73

Short to GND in Front Pretensioner Squib RH Circuit

*2

ON

B1903/73

Short to B+ in Front Pretensioner Squib RH Circuit

*2

ON

B1905/74

Short in Front Pretensioner Squib LH Circuit

*2

ON

B1906/74

Open in Front Pretensioner Squib LH Circuit

*2

ON

B1907/74

Short to GND in Front Pretensioner Squib LH Circuit

*2

ON

B1908/74

Short to B+ in Front Pretensioner Squib LH Circuit

*2

ON

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