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P0410 GMC

P0410 GMC - Secondary Air Injection System Malfunction

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P0410 GMC Comments |  Add Comment
Possible causes
- Faulty Vacuum hoses damaged
- Faulty Air Pump inoperative
- Air bypass solenoid harness is open or shorted
- Air bypass solenoid circuit poor electrical connection
- Air bypass solenoid leaking/blocked or stuck open/closed
- Air diverter valve leaking/blocked or stuck open/closed
Help with Possible causes What does this mean?
Tech notes
Visually inspect AIR pump and AIR bypass valve harness and connector, if connector are OK, then replaced AIR bypass valve.

There is a factory service bulletin for the following GMC Models:

1999-2001 GMC Jimmy
GMC Factory Service Bulletin OBDII Code P0410
Help with Tech Notes What does this mean?
When is the code detected?
The secondary air injection system does not detect the presence of air in the exhaust when introduced by the secondary air injection system.
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine hesitation
P0410 GMC Description

An air pump is used on the vehicle to lower tail pipe emissions on start-up. The Powertrain Control Module (PCM) grounds the Air pump relay control circuit which energizes the Air pump. The PCM also grounds the Air combination valve vacuum control solenoid circuit, which energizes the Air vacuum control solenoid. Vacuum is then applied to both Air combination valve diaphragms which opens the shut off valves. The PCM enables both circuits simultaneously when Air system operations id desired. When the AIR system is active, then Air pump forces fresh air into the exhaust stream in order to accelerate catalyst operation. The AIR combination valves replace the conventional check valves. When the AIR system is inactive the shut off valves prevent air flow in either direction.

GMC Technical Service Bulletins for P0410 code
1999 GMC JIMMY Engine And Engine Cooling:engine Details
1999 GMC SONOMA Engine And Engine Cooling:engine Details
2000 GMC JIMMY Engine And Engine Cooling:engine Details
2000 GMC SONOMA Engine And Engine Cooling:engine Details
2001 GMC JIMMY Engine And Engine Cooling:engine Details
2001 GMC SONOMA Engine And Engine Cooling:engine Details
2002 GMC SONOMA Engine And Engine Cooling:engine Details
2003 GMC SONOMA Engine And Engine Cooling:engine Details
1999 GMC JIMMY 061000 Engine And Engine Cooling:engine Details
1999 GMC SONOMA 061000 Engine And Engine Cooling:engine Details
More Bulletins Help with Technical Service Bulletins What does this mean?
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