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.
2012 Honda CR-Z Base, Standard TransFACTORY OEM SERVICE PROCEDURE
Fuel And Emissions Systems
- Special Tools
- General Troubleshooting Information
- Intermittent Failures
- Service Information
- Opens and Shorts
- How to Use the HDS (Honda Diagnostic System)
- HDS Clear Command
- Scan Tool Clear Command
- DTC Clear
- ECM/PCM Reset
- CKP Pattern Clear/CKP Pattern Learn
- How to End a Troubleshooting Session (required after any troubleshooting)
- How to Troubleshoot Circuits at the ECM/PCM Connectors
- Substituting the ECM/PCM
- OBD Status
- DTC Troubleshooting Index
- Symptom Troubleshooting Index
- System Description
- Fuel and Emissions System Diagram
- Vacuum Hose Routing
- Electronic Control Systems
- ECM/PCM Inputs and Outputs at ECM/PCM Connector A (β‘) (44P)
- ECM/PCM Inputs and Outputs at ECM/PCM Connector B (Ξ) (44P)
- ECM/PCM Inputs and Outputs at ECM/PCM Connector C (β¦) (44P)
- ECM/PCM Electrical Connections
- ECM/PCM Circuit Diagram
- Communication Systems Circuit Diagram
- PGM-F1 System
- Notes
- Air Conditioning (A/C) Compressor Clutch Relay
- Air Fuel Ratio f A/F) Sensor
- Barometric Pressure (BARO) Sensor
- Camshaft Position (CMP) Sensor
- Crankshaft Position (CKP) Sensor
- Engine Coolant Temperature (ECT) Sensors 1 and 2
- Ignition Timing Control
- Injector Timing and Duration
- Knock Sensor
- Manifold Absolute Pressure (MAP) Sensor
- Malfunction indicator Lamp (MIL) Indication fin relation to Readiness Codes)
- Mass Air Flow (MAF) Sensor/Intake Air Temperature (1AT) Sensor
- Output Shaft (Countershaft) Speed Sensor (M/T)
- Secondary Heated Oxygen Sensor (Secondary HO2S)
- Vehicle Speed Sensor (CVT)
- Shift Indicator Lamp (SIL) (M/T)
- Electronic Throttle Control System
- Electronic Throttle Control System Diagram
- VTEC
- Operation
- Idle Control System
- Fuel Supply System
- Catalytic Converter System
- Exhaust Gas Recirculation (EGR) System
- Exhaust Gas Recirculation (EGR) System Diagram
- Positive Crankcase Ventilation (PCV) System
- Evaporative Emission (EVAP) System
- Evaporative Emission (EVAP) Control Diagram
- Fuel Cap Warning Message
- How to clear the message with the HDS
- How to clear the message without the HDS
- 3-Mode Drive System
- Driver Feedback System
- How to Set Readiness Codes
- Malfunction Indicator Lamp (MIL) Indication (In relation to Readiness Codes)
- Catalytic Converter Monitor and Readiness Code
- Evaporative Emission (EVAP) Control System Monitor and Readiness Code
- Air Fuel Ratio (A/F) Sensor Monitor and Readiness Code
- Air Fuel Ratio (A/F) Sensor Heater Monitor Readiness Code
- Misfire Monitor and Readiness Code
- Fuel System Monitor and Readiness Code
- Comprehensive Component Monitor and Readiness Code
- EGR Monitor and Readiness Code
Factory Service Tools
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.