Saab 900 C1396 Engine Trouble Code
What is Saab 900 C1396?
The Saab 900 C1396 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.
C1396 on the Saab 900
In cold climates, Saab 900 vehicles frequently log C1396 during the first winter of ownership. Condensation inside the throttle body creates a temporary short circuit in the position sensor wiring, which clears once the engine warms up — but the fault code remains stored.
Code Information
| Code Type: | OBD-II Chassis (C) Trouble Code |
| System: | Chassis |
| Vehicle: | Saab 900 |
| Brand: | Saab |
| Model: | 900 |
| Code: | C1396 |
C1396 Saab 900 Symptoms
Check Engine Light
Illuminated Saab 900 dashboard warning
Engine Stalling
Engine stops unexpectedly or misfires
Performance Issues
Reduced power or acceleration on the Saab 900
Starting Problems
Difficulty starting the engine
Poor Fuel Economy
Increased fuel consumption on the Saab 900
Increased Emissions
Failed emissions test due to C1396
C1396 Code Structure
Understanding what each digit means in the C1396 chassis trouble code:
| C | 1 | 3 | 9 | 6 |
|---|---|---|---|---|
| Chassis Code | Fuel And Air Metering | Throttle/Pedal Position Sensor/Switch A Circuit Intermittent | Crankshaft Position Sensor A Circuit Malfunction | Ignition Coil A Primary/Secondary Circuit Malfunction |
How to Fix Saab 900 C1396
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:
Firing order is engineered to minimise vibration. Altering firing order results in mistimed ignition and poor engine operation. Consult vehicle-specific repair manual for correct firing order.
Technical Notes:
C1396 on electronically controlled automatic transmissions relates to shift solenoid operation. The solenoid actuates hydraulic circuits controlling clutches or bands for gear changes.
Saab 900 C1396 Repair Cost
Throttle body cleaning and idle relearn on the Saab 900 for a C1396 diagnosis costs $60–$100 at an independent shop. If a full throttle body replacement is needed (rare), expect $250–$450 including programming the unit to the ECU.
C1396 Description
C1396 engine trouble code is related to Ignition Coil A Primary/Secondary Circuit Malfunction.
Main Cause
The primary reason for C1396 OBD-II Engine Trouble Code is: Throttle/Pedal Position Sensor/Switch A Circuit Intermittent.
Common C1396 Misdiagnosis on the Saab 900
A frequent misdiagnosis on the Saab 900 is replacing the oxygen sensor when C1396 appears, only for the code to return within days. The actual cause is usually an exhaust manifold gasket leak introducing false air before the upstream O2 sensor — a much cheaper fix.
DIY Repair Guide: C1396 on Saab 900
The fuel pressure test on the Saab 900 requires a Schrader-valve type fuel pressure gauge ($25–$40) connected to the fuel rail test port. With the ignition ON (engine off), pressure should hold above 30 PSI for two minutes. A rapid drop confirms a leaking injector or failing regulator as the root cause of C1396.
Preventing C1396 on the Saab 900
Inspecting the Saab 900 wiring harness conduit grommets annually — especially the floor pan grommet — costs nothing and takes 10 minutes. Catching moisture ingress early eliminates the most common electrical trigger for C1396 on this model.
Frequently Asked Questions — Saab 900 C1396
A: It depends on the severity. If the check-engine light is steady, it is generally safe to drive to a workshop within the next few days. If the light is flashing, pull over safely as soon as possible — a flashing light indicates an active misfire that can cause expensive catalytic converter damage within minutes.