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Author Topic: Cluster swap S4 B7 cluster to A4 B6  (Read 8653 times)
BlackT
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« Reply #15 on: May 09, 2019, 01:42:22 PM »

Yes i see that too  Huh  maybe something in cluster is not right? Are you sure that there is digital signal for oil level? schouldun't be something like analog 0-5 V?
For coolant temp i must do some research
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macxxx
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« Reply #16 on: May 09, 2019, 01:56:31 PM »

maybe I wasn't precise with the digital signal , I wanted to say its not an simple resistance Wink

Code:
The TOG by Hella uses a simple pulse sequence with the time between two pulses and the length of the pulses representing oil temperature and oil condition/quality. As TinyTOG focuses on engines before 2000 (without long life service) only the coding of the oil temperature was analyzed. It turned out that time between the first and the second pulse together with the length of the second pulse represent the oil temperature. The first pulse is constantly 20ms long. The delay between two cycles must be at least 250ms long.

Temperature Time between pulses Length of pulse 2
41°C 23.0ms 24.0ms
60°C 26.3ms 27.0ms
65°C 27.0ms 27.8ms
70°C 28.0ms 28.3ms
75°C 28.5ms 29.3ms
80°C 29.3ms 30.0ms
85°C 30.3ms 30.8ms
90°C 31.0ms 31.5ms
95°C 31.8ms 32.5ms
100°C 32.5ms 33.3ms
105°C 33.3ms 34.0ms
110°C 34.0ms 35.0ms
115°C 35.0ms 35.8ms
120°C 35.8ms 36.8ms
125°C 36.8ms 37.5ms
130°C 37.5ms 38.3ms
135°C 38.3ms 39.3ms
140°C 39.3ms 40.0ms
145°C 40.0ms 40.8ms
150°C 41.0ms 41.8ms
155°C 41.8ms 42.8ms
160°C 42.8ms 43.5ms
165°C 43.5ms 44.5ms
170°C 44.5ms 45.3ms
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