Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC Work Support Mode
Test Item
|
Test mode |
Test item |
Corresponding DTC No. |
Reference |
|
HO2S2 |
HO2S2 (B1) P1146 |
P0138 |
|
|
HO2S2 (B1) P1147 |
P0137 |
||
|
HO2S2 (B1) P0139 |
P0139 |
||
|
HO2S2 (B2) P1166 |
P0158 |
||
|
HO2S2 (B2) P1167 |
P0157 |
||
|
HO2S2 (B2) P0159 |
P0159 |
||
|
A/F SEN1 |
A/F SEN1 (B1) P1278/P1279 |
-- |
|
|
A/F SEN1 (B1) P1276 |
P0130 |
||
|
A/F SEN1 (B2) P1288/P1289 |
-- |
||
|
A/F SEN1 (B2) P1286 |
P0150 |
||
|
EVAPORATIVE SYSTEM |
EVP V/S LEAK P0456/P1456* |
P0456 |
|
|
PURG VOL CN/V P1444 |
P0443 |
||
|
PURG FLOW P0441 |
P0441 |
*: DTC P1456 does not apply to Y51 models but appears in DTC Work Support Mode screens.
NO RELATED
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.