Aston Martin diagnostic trouble code
P0322: Lost CPS Signal
Use this reference to understand the recorded condition, confirm the available V8 Vantage or DB9 manual coverage, and follow the documented diagnostic checks before replacing parts.
- Code family
- Powertrain
- Vehicle system
- Other vehicle system
- Manual coverage
- DB9
- Warning-lamp status
- DB9: MIL
What Aston Martin code P0322 means
Lost CPS Signal
DB9 preliminary diagnostic manual · section 2-80
Manufacturer fault-analysis procedure
Manual fault definition
P0322 - Crankshaft sensor signal lost
Cautions and notes
CAUTION: This code may be generated in the
Primary or Secondary Powertrain Control Module
(PCM). Check that you are working on the correct
half of the engine.
Primary or Secondary Powertrain Control Module
(PCM). Check that you are working on the correct
half of the engine.
Test sequence and decision path
1. Connect the WDS and confirm that P0322 is
logged. Note any other logged DTCs.
2. Check the relevant crank sensor for disconnection, damaged wiring or other wiring defect.
If no obvious wiring defect is present, go to step 3
If any wiring defect is identified, service the wiring as necessary. Set WDS to monitor both crank
signals. Run the engine and ensure that both signals are satisfactory.
3. Using the WDS oscilloscope, monitor the crank
sensor signals with the engine running. The signals should follow a regular pattern of 35 pulses
and then a one pulse gap. This sequence must
repeat every engine revolution for both sensors.
4. If any crank signal pulse is missing or malformed,
swap the crankshaft sensors bank to bank and
repeat the datalogger check.
If the fault swaps to the opposite bank, replace
the faulty crankshaft sensor. Clear the P0322
code and run a KOER test to ensure that the problem is resolved.
If the fault remains on the original engine bank,
service the crankshaft sensor wiring as necessary.
Clear the P03226 code and run anengine test to
ensure that the problem is resolved.
Open the corresponding manual page for wiring diagrams and figures
logged. Note any other logged DTCs.
2. Check the relevant crank sensor for disconnection, damaged wiring or other wiring defect.
If no obvious wiring defect is present, go to step 3
If any wiring defect is identified, service the wiring as necessary. Set WDS to monitor both crank
signals. Run the engine and ensure that both signals are satisfactory.
3. Using the WDS oscilloscope, monitor the crank
sensor signals with the engine running. The signals should follow a regular pattern of 35 pulses
and then a one pulse gap. This sequence must
repeat every engine revolution for both sensors.
4. If any crank signal pulse is missing or malformed,
swap the crankshaft sensors bank to bank and
repeat the datalogger check.
If the fault swaps to the opposite bank, replace
the faulty crankshaft sensor. Clear the P0322
code and run a KOER test to ensure that the problem is resolved.
If the fault remains on the original engine bank,
service the crankshaft sensor wiring as necessary.
Clear the P03226 code and run anengine test to
ensure that the problem is resolved.