Nissan Gloria C1206 Engine Trouble Code
What is Nissan Gloria C1206?
The Nissan Gloria C1206 check-engine light can indicate issues ranging from minor (loose gas cap) to serious (catalytic converter failure). Professional diagnostic scanning at a dealer or shop will identify the exact cause and required repairs.
C1206 on the Nissan Gloria
Diesel variants of the Nissan Gloria trigger C1206 most often due to swirl flap actuator failure. The plastic actuator arm breaks and the flap defaults to the closed position, causing severe intake restriction and the associated fault flag.
Code Information
| Code Type: | OBD-II Chassis (C) Trouble Code |
| System: | Chassis |
| Vehicle: | Nissan Gloria |
| Brand: | Nissan |
| Model: | Gloria |
| Code: | C1206 |
C1206 Nissan Gloria Symptoms
Check Engine Light
Illuminated Nissan Gloria dashboard warning
Engine Stalling
Engine stops unexpectedly or misfires
Performance Issues
Reduced power or acceleration on the Nissan Gloria
Starting Problems
Difficulty starting the engine
Poor Fuel Economy
Increased fuel consumption on the Nissan Gloria
Increased Emissions
Failed emissions test due to C1206
C1206 Code Structure
Understanding what each digit means in the C1206 chassis trouble code:
| C | 1 | 2 | 0 | 6 |
|---|---|---|---|---|
| Chassis Code | Fuel And Air Metering | Manifold Absolute Pressure/Barometric Pressure Circuit High Input | Cold Start Injector 1 Malfunction | Ignition Coil A Primary/Secondary Circuit Malfunction |
How to Fix Nissan Gloria C1206
Diagnostic Steps:
Check if fuel pump primes when key is turned to ON. Measure fuel pressure and verify bright white-blue spark at all plugs. Also verify mechanical timing alignment.
Repair Solution:
VSS concerns may stem from noisy input signals caused by RFI/EMI from ignition wires, charging circuits, or aftermarket equipment. Verify VSS reads 0 mph when transmission is in Park.
Technical Notes:
C1206 DTC specifically relates to camshaft timing. When cam timing is over-retarded, the check-engine light illuminates and this code sets. Verify VCT solenoid operation and check for contamination.
Nissan Gloria C1206 Repair Cost
Addressing C1206 on your Nissan Gloria typically involves: dealer diagnostic fee $95–$150, oxygen sensor replacement $180–$320 (parts + labour), or catalytic converter replacement $1,800–$2,400 if damage has progressed. Independent specialist garages often charge 20–30% less than franchised dealers for identical work.
C1206 Description
C1206 engine trouble code is related to Ignition Coil A Primary/Secondary Circuit Malfunction.
Main Cause
The primary reason for C1206 OBD-II Engine Trouble Code is: Manifold Absolute Pressure/Barometric Pressure Circuit High Input.
Common C1206 Misdiagnosis on the Nissan Gloria
Some Nissan Gloria models have a known software bug where the PCM flags C1206 after battery disconnection and reconnect. Always perform an ECU adaptation reset and drive cycle before ordering any parts following battery work.
DIY Repair Guide: C1206 on Nissan Gloria
For the Nissan Gloria, an EGR valve inspection is a useful DIY step before spending money on diagnosis. Remove the valve (2–4 bolts depending on generation), inspect for carbon build-up, and use carburettor cleaner and a soft brass brush to clean the valve face and seat.
Preventing C1206 on the Nissan Gloria
Using only genuine or OEM-specification fuel injectors in the Nissan Gloria ensures precise spray pattern and flow rate. Inferior aftermarket injectors are a documented trigger for C1206 through off-target fuel delivery.
Frequently Asked Questions — Nissan Gloria C1206
A: C1206 is a standardised OBD-II code that can appear on any make and model. However, the specific components and circuits that trigger this code, and the repair procedures involved, vary significantly between vehicles. The information on this page is focused on the Nissan Gloria.