Temperature/pressure gauge on dashboard issues
Member
Joined: Aug 2011
Posts: 120
From: Beaverton
Your sender resistance readings are higher than listed in the Honda manuals; however, since the resistance is higher, it should even be less likely to cause the temperature gauge to spike immediately with the key on.
Other people with 4th generation Accords have reported the resistance with the car warmed up at about 70 ohms. The resistance will be lower if the coolant temperature was hotter.
If your gauge is still spiking immediately with the key on, it may be due to a short in the wiring or the gauge is the issue.
With the car cool, plug back in the Red wire back into the sending unit. Go inside the car and measure the resistance at the instrument gauge's green 22P connector's Red wire at terminal number 5. Ignition switch position can be turn off when measuring the resistance.
Compare the resistance readings at the sending unit and inside the car. Are they relatively similar?
Other people with 4th generation Accords have reported the resistance with the car warmed up at about 70 ohms. The resistance will be lower if the coolant temperature was hotter.
If your gauge is still spiking immediately with the key on, it may be due to a short in the wiring or the gauge is the issue.
With the car cool, plug back in the Red wire back into the sending unit. Go inside the car and measure the resistance at the instrument gauge's green 22P connector's Red wire at terminal number 5. Ignition switch position can be turn off when measuring the resistance.
Compare the resistance readings at the sending unit and inside the car. Are they relatively similar?
One book I found said 142 cold and 49-32 hot.
Last edited by tashier; Jun 14, 2015 at 03:41 PM.
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Karthigan
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Nov 27, 2006 02:55 PM