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.
Fail-Safe Mode Chart
If any of following codes are recorded, engine control module (ECM) enters fail-safe mode. See IDENTIFYING FAIL-SAFE MODE CHART table.
| DTC No. | Fail-Safe Operation | Fail-Safe Deactivation Conditions |
|---|---|---|
| P0100 | Ignition Timing Fixed At 10° BTDC | Returned To Normal Condition |
| P0110 | Intake Air Temperature Fixed At 68°F (20°C) | Returned To Normal Condition |
| P0115 | Engine Coolant Temperature Fixed At 176°F (80°C) | Returned To Normal Condition |
| P0120 | VTA Fixed At 0° | Following Condition Is Repeated At Least 2 Times Consecutively When Closed Throttle Position Switch Is OFF: VTA Is Greater Than Or Equal To 0.1 V & Less Than Or Equal To 0.95 V |
| P0135 & P0141 | Abnormal Heater Circuit Is Turned Off | Ignition Switch OFF |
| P0325 | Max. Timing Retardation | Ignition Switch OFF |
| P1300, P1305, P1310 & P1315 | Fuel Cut | Returned To Normal Condition |
| P1656 | It Cut Electrically Abnormal Circuit | Returned To Normal Condition |
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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