Aston Martin diagnostic trouble code
P0202: Injector Circuit / Open - Cylinder 2
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
- Fuel and air
- Manual coverage
- V8 Vantage, DB9
- Warning-lamp status
- V8 Vantage: MIL; DB9: MIL
What Aston Martin code P0202 means
Injector Circuit / Open - Cylinder 2
DB9 preliminary diagnostic manual · section 2-62
Manufacturer fault-analysis procedure
Manual fault definition
P0201 - P0206 - Injector circuit fault.
Cautions and notes
CAUTION: These codes may be generated in the
Primary or Secondary Powertrain Control Module
(PCM) Check that you are working on the correct
half of the engine.
NOTE: If the fault is intermittent, use datalogger to monitor all suspect injector signals during a road test.
If +12v is present, go to step 3.
If +12v is not present, Service the 12 volt supply
as necessary, reconnect the injector circuits.
Clear the fault code. Run a KOER test to ensure
that the problem is resolved.
Primary or Secondary Powertrain Control Module
(PCM) Check that you are working on the correct
half of the engine.
NOTE: If the fault is intermittent, use datalogger to monitor all suspect injector signals during a road test.
If +12v is present, go to step 3.
If +12v is not present, Service the 12 volt supply
as necessary, reconnect the injector circuits.
Clear the fault code. Run a KOER test to ensure
that the problem is resolved.
Test sequence and decision path
1. Connect the WDS or scan tool. Confirm that a
code in the range P0201 - P0206 is logged.
Primary PCM
P0201 - Injector 1 fault - PCM pin C0636-2
P0202 - Injector 2 fault - PCM pin C0636-9
P0203 - Injector 3 fault - PCM pin C0636-5
P0204 - Injector 4 fault - PCM pin C0636-4
P0205 - Injector 5 fault - PCM pin C0636-8
P0206 - Injector 6 fault - PCM pin C0636-3
Secondary PCM
P0201 - Injector 7 fault - PCM pin C2464-2
P0202 - Injector 8 fault - PCM pin C2464-9
P0203 - Injector 9 fault - PCM pin C2464-5
P0204 - Injector 10 fault - PCM pin C2464-4
P0205 - Injector 11 fault - PCM pin C2464-8
P0206 - Injector 12 fault - PCM pin C2464-3
2. Disconnect the suspect injector and switch on the
ignition. Check for +12 volts from injector harness connector pin 2 to chassis ground.
3. Switch off the ignition and install the break-out
box to the harness of the affected PCM.
Open the corresponding manual page for wiring diagrams and figures
code in the range P0201 - P0206 is logged.
Primary PCM
P0201 - Injector 1 fault - PCM pin C0636-2
P0202 - Injector 2 fault - PCM pin C0636-9
P0203 - Injector 3 fault - PCM pin C0636-5
P0204 - Injector 4 fault - PCM pin C0636-4
P0205 - Injector 5 fault - PCM pin C0636-8
P0206 - Injector 6 fault - PCM pin C0636-3
Secondary PCM
P0201 - Injector 7 fault - PCM pin C2464-2
P0202 - Injector 8 fault - PCM pin C2464-9
P0203 - Injector 9 fault - PCM pin C2464-5
P0204 - Injector 10 fault - PCM pin C2464-4
P0205 - Injector 11 fault - PCM pin C2464-8
P0206 - Injector 12 fault - PCM pin C2464-3
2. Disconnect the suspect injector and switch on the
ignition. Check for +12 volts from injector harness connector pin 2 to chassis ground.
3. Switch off the ignition and install the break-out
box to the harness of the affected PCM.
Supporting owner context
What owners have reported
An owner case found that an injector-circuit code was caused by damage in the wiring or connector. Check the harness and connector integrity before condemning the injector. Generic readers may also fail to show which engine controller logged the code.
This is supporting owner-reported context, not a replacement for the manufacturer procedure or a diagnosis of every vehicle.
Read the related owner discussion