Nissan Cima B2699 Engine Trouble Code
What is Nissan Cima B2699?
Nissan Cima B2699 indicates potential catalytic converter failure. If completely failed, your vehicle may not run properly and fuel economy will suffer significantly. Average replacement cost is $2,000–$2,140. This repair requires professional service and should not be delayed.
B2699 on the Nissan Cima
On the Nissan Cima, a secondary air injection pump that has seized due to moisture ingress is a common trigger for B2699. The fault is usually only present on cold starts and clears itself after two to three warm-up cycles, making it easy to overlook.
Code Information
| Code Type: | OBD-II Body (B) Trouble Code |
| System: | Body |
| Vehicle: | Nissan Cima |
| Brand: | Nissan |
| Model: | Cima |
| Code: | B2699 |
B2699 Nissan Cima Symptoms
Check Engine Light
Illuminated Nissan Cima dashboard warning
Engine Stalling
Engine stops unexpectedly or misfires
Performance Issues
Reduced power or acceleration on the Nissan Cima
Starting Problems
Difficulty starting the engine
Poor Fuel Economy
Increased fuel consumption on the Nissan Cima
Increased Emissions
Failed emissions test due to B2699
B2699 Code Structure
Understanding what each digit means in the B2699 body trouble code:
| B | 2 | 6 | 9 | 9 |
|---|---|---|---|---|
| Body Code | Fuel And Air Metering (Injector Circuit Malfunctions Only) | Fuel Temperature Sensor B Circuit Range/Performance | Crankshaft Position Sensor A Circuit Malfunction | Reverse Input Circuit |
How to Fix Nissan Cima B2699
Diagnostic Steps:
The catalytic converter has oxygen sensors before and after it. When warm and in closed-loop mode, the upstream O2 sensor reading should fluctuate, while downstream should remain steady.
Repair Solution:
A/C pressure sensor monitors refrigerant pressure changes. DTC sets when pressure change falls outside calibration. Verify A/C system function, refrigerant charge, and electrical connections.
Technical Notes:
For B2699, verify VCT solenoid operation. Look for stuck or sticking valves caused by contamination. Consult vehicle-specific repair manual for proper component testing procedures.
Nissan Cima B2699 Repair Cost
On the Nissan Cima, secondary air injection pump replacement for a B2699 code runs $350–$600. Because the pump is only active during cold starts, symptoms are easily missed. Requesting a cold-start emissions test at the workshop will confirm whether the pump is operating.
B2699 Description
B2699 engine trouble code is related to Reverse Input Circuit.
Main Cause
The primary reason for B2699 OBD-II Engine Trouble Code is: Fuel Temperature Sensor B Circuit Range/Performance.
Common B2699 Misdiagnosis on the Nissan Cima
When Nissan Cima presents B2699 with a concurrent coolant temperature DTC, technicians sometimes replace the thermostat rather than the coolant temperature sensor (CTS). The CTS is a $15–$25 component; the thermostat job carries 1–2 hours of additional labour.
DIY Repair Guide: B2699 on Nissan Cima
When replacing sensors on the Nissan Cima, always use anti-seize compound on the thread and dielectric grease on the electrical connector. This simple habit prevents the most common causes of sensor-related callbacks after repair.
Preventing B2699 on the Nissan Cima
The Nissan Cima heat shield over the exhaust manifold protects the nearby sensor wiring from radiant heat damage. Inspect it for cracks or displacement at every brake service. A $15 replacement shield can prevent $300+ wiring loom repairs.
Frequently Asked Questions — Nissan Cima B2699
A: Yes. A weak battery causes voltage drop during cranking that confuses the ECU and can store a range of fault codes. Always rule out battery and charging system health before diagnosing sensor-related codes.