causes for code 552
Fleet Owner
Joined: Aug 2005
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From: Easton,Ks
The KOEO self-test is an electrical test only. So either you are not getting the right voltage back to the computer or you have a power supply or ground problem or a computer problem or a wiring problem in that circuit.
TROUBLE CODES (DTCS) 553 AND 552: CHECK VOLTAGE OF VPWR CIRCUIT.
DTCs 553 and 552 indicate that voltage output for Secondary Air Injection solenoid(s) did not change when activated.
Possible causes:
-- AIRB/AIRD circuits shorted to power.
-- AIRB/AIRD circuits open or grounded.
-- AIRB/AIRD resistance out of range.
-- Damaged Powertrain Control Module (PCM).
TROUBLE CODES (DTCS) 553 AND 552: CHECK VOLTAGE OF VPWR CIRCUIT.
DTCs 553 and 552 indicate that voltage output for Secondary Air Injection solenoid(s) did not change when activated.
Possible causes:
-- AIRB/AIRD circuits shorted to power.
-- AIRB/AIRD circuits open or grounded.
-- AIRB/AIRD resistance out of range.
-- Damaged Powertrain Control Module (PCM).
Thread Starter
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Posting Guru
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Just to make sure I'm in the right ball park The airb/Aird circuits are to two square topped solenoids on the valve cover right?
I checked the wires do you know what range the resistance should be and what voltage I should have.
I checked the wires do you know what range the resistance should be and what voltage I should have.
Fleet Owner
Joined: Aug 2005
Posts: 23,667
Likes: 301
From: Easton,Ks
Yes that is the two square topped solenoids on the valve cover.
Both get power from the PCM Power relay over a red wire. This red wire should be close to battery voltage.
The coil resistance is to be between 50 and 100 ohms.
Both get power from the PCM Power relay over a red wire. This red wire should be close to battery voltage.
The coil resistance is to be between 50 and 100 ohms.
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