DTC P1421 code: Secondary Air Injection Valve Circuit Short To Ground (AUDI, VOLKSWAGEN) Secondary Air System Bank 1 (BMW) Intake Air Low Pressure Switch Circuit High Voltage (BUICK, CADILLAC, CHEVROLET, GMC) Cold Start Control (INFINITI, NISSAN) EVAP Canister Gross Leak (LEXUS, TOYOTA) Clogged Or Dirty Catalyst (MITSUBISHI) Exhaust Gas Recirculation Circuit High Input (SUBARU) EVAP System Vent Valve Stuck Open/Closed (SUZUKI). Fault type Drive system in category Flue gas emission defect.
Error Code DTC / Diagnostic Trouble Code:
P1421.
Hexadecimal Code: 1421.
The orange color P1421 indicates car fault. What to do when the car started to show P1421 error. After starting the car a signal P1421 lights orange. What means P1421 in orange color. Auto P1421 error repair code.
- Error code Drive Motor Inverter Temperature Sensor &Quot;F&Quot; Circuit High:
- What does it mean secondary air injection valve circuit short to ground (audi, volkswagen) secondary air system bank 1 (bmw) intake air low pressure switch circuit high voltage (buick, cadillac, chevrolet, gmc) cold start control (infiniti, nissan) evap canister gross leak (lexus, toyota) clogged or dirty catalyst (mitsubishi) exhaust gas recirculation circuit high input (subaru) evap system vent valve stuck open/closed (suzuki) definition.
- Error code Engine Coolant Temperature Signal (FORD, LINCOLN, MAZDA, MERCURY):
- What does it mean secondary air injection valve circuit short to ground (audi, volkswagen) secondary air system bank 1 (bmw) intake air low pressure switch circuit high voltage (buick, cadillac, chevrolet, gmc) cold start control (infiniti, nissan) evap canister gross leak (lexus, toyota) clogged or dirty catalyst (mitsubishi) exhaust gas recirculation circuit high input (subaru) evap system vent valve stuck open/closed (suzuki) explain.
- Error code Cruise Direction Circuit High Volume (BUICK, CADILLAC) Cruise Direction CircuitHigh Voltage (CHEVROLET, GMC) Electronic Throttle Monitor Cruise Disable (FORD) Motor Current V Phase Signal Circuit Low Input (HONDA) Motor Current V Phase Signal Circuit High Input (HONDA):
- What does it mean secondary air injection valve circuit short to ground (audi, volkswagen) secondary air system bank 1 (bmw) intake air low pressure switch circuit high voltage (buick, cadillac, chevrolet, gmc) cold start control (infiniti, nissan) evap canister gross leak (lexus, toyota) clogged or dirty catalyst (mitsubishi) exhaust gas recirculation circuit high input (subaru) evap system vent valve stuck open/closed (suzuki) what is.
- Error code ISO/SAE Reserved:
- What does it mean secondary air injection valve circuit short to ground (audi, volkswagen) secondary air system bank 1 (bmw) intake air low pressure switch circuit high voltage (buick, cadillac, chevrolet, gmc) cold start control (infiniti, nissan) evap canister gross leak (lexus, toyota) clogged or dirty catalyst (mitsubishi) exhaust gas recirculation circuit high input (subaru) evap system vent valve stuck open/closed (suzuki) meaning.
