C0845 Engine Trouble Code
What is C0845?
The C0845 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.
Code Information
| Code Type: | OBD-II Chassis (C) Trouble Code |
| System: | Chassis |
| Code: | C0845 |
C0845 Symptoms
Check Engine Light
Illuminated dashboard warning
Engine Stalling
Engine stops unexpectedly or misfires
Performance Issues
Reduced power or acceleration
Starting Problems
Difficulty starting the engine
C0845 Code Structure
Understanding what each digit means in the C0845 chassis trouble code:
| C | 0 | 8 | 4 | 5 |
|---|---|---|---|---|
| Chassis Code | Intake Valve Control Solenoid Circuit Low | Engine Oil Temperature Sensor Malfunction | Injection Pump Fuel Metering Control 'B' High | Crankshaft Position Sensor B Circuit Malfunction |
How to Fix C0845
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:
C0845 on electronically controlled automatic transmissions relates to shift solenoid operation. The solenoid actuates hydraulic circuits controlling clutches or bands for gear changes.
C0845 Description
C0845 engine trouble code is related to Crankshaft Position Sensor B Circuit Malfunction.
Main Cause
The primary reason for C0845 OBD-II Engine Trouble Code is: Engine Oil Temperature Sensor Malfunction.