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In 2023, I was getting P1121 & P1123 on my 2005 Prius. In August 2023, I bought a genuine Toyota 16670-21010. Today I changed out the valve...

Thread by: Dave Jeffries, Sep 2, 2025, 2 replies, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting

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Last August I bought a Genuine Toyota Coolant Control Valve 16670-21010. I installed the valve and reset the codes. That lasted for several...

Thread by: Dave Jeffries, Jun 15, 2024, 10 replies, in forum: Gen 2 Prius Technical Discussion

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I have a 2005 Prius. I recently replaced the head lamps. I found out I have the expensive ones, WAGNER D2R (HID (intense white light)) w/ Xenon...

Thread by: Dave Jeffries, Dec 4, 2023, 9 replies, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting

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Just wanted to post my 2 cents worth. Bought fluid 11/23/18 at the dealership for $12.99/qt. I have a 2005 with 116K miles on it. Raised the...

Thread by: Dave Jeffries, Nov 24, 2018, 9 replies, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting

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Where is this sensor? Is it the Brake Light Switch? I have been reading thru discussions on here for over 3 days and only see that people have...

Thread by: Dave Jeffries, Sep 16, 2015, 3 replies, in forum: Gen 2 Prius Technical Discussion

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Having read that some have experienced a loss of function when the aux battery was replaced, I decided to attach my battery charger, which has a...

Thread by: Dave Jeffries, Feb 22, 2015, 2 replies, in forum: Gen 2 Prius Care, Maintenance and Troubleshooting