Toyota Tacoma
B1242
The B1242 code on a 2016-present Toyota Tacoma N300 indicates a malfunction in the air conditioning (A/C) system, specifically related to the A/C relay or circuit.
5 SolutionsB-CodeBody
B
Error Code Type
Body
Components
2 affected
HVACElectrical
Symptoms
10 common
- •A/C system not functioning or blowing warm air
- •A/C compressor not engaging
- •A/C indicator light blinking or not illuminated
- +7 more
Most Affected Generations
1 generation
N300
5
Top Affected Components
2 components
Electrical
3
HVAC
2
Severity Levels
2 levels
medium
4
high
1
Quick Facts
5
Total Solutions
2
Affected Components
10
Common Symptoms
1
Generations
All Solutions
Showing 5 of 5 solutions for error code B1242 across all generations.