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PSA - Litronic retrofit controller is identical to the original Litronic controller

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YOUR RESEARCHPSA - Litronic retrofit controller is identical to the original Litronic controller

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Use with level sensors

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Performed · outcome unconfirmed · Original poster
The original can be used without level sensors and with the retrofit harness, and the retrofit module can be used with level sensors.
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PSA - Litronic retrofit controller is identical to the original Litronic controller

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Leading evidence: 'Use with level sensors' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use with level sensors' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Use without level sensors

Performed · outcome unconfirmed

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Performed · outcome unconfirmed · Original poster
The original can be used without level sensors and with the retrofit harness, and the retrofit module can be used with level sensors.
Original post Read captured discussion
PSA - Litronic retrofit controller is identical to the original Litronic controller

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Use with level sensors

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that performed work without a confirmed outcome: 1

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Performed · outcome unconfirmed · Original poster
The original can be used without level sensors and with the retrofit harness, and the retrofit module can be used with level sensors.
Original post Read captured discussion
PSA - Litronic retrofit controller is identical to the original Litronic controller

Use without level sensors

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed · Original poster
The original can be used without level sensors and with the retrofit harness, and the retrofit module can be used with level sensors.
Original post Read captured discussion
PSA - Litronic retrofit controller is identical to the original Litronic controller

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POST 1 / ORIGINAL POSTEROriginal post

The original Litronic controller had 3 part #s, 996-618-151-15, 996-618-051-09, and 996-618-051-10. The retrofit controller is designated 000-044-900-38, and has been since 2000 when the TSB for Litronic retrofits was published. They're exactly the same part. I have both an original (996-618-051-10 for reference) and a retrofit module (000-044-900-38), and both behave exactly the same. The original can be used without level sensors and with the retrofit harness, and the retrofit module can be used with level sensors. Further, if you peel the labels (one stacked on top of another) on the retrofit module, you can find an original part number under it (pics attached). I've seen some confusion on whether or not they were any different, hope this helps to clear it up. So, to be clear, all 4 of these part numbers seem interchangeable. I at first thought that the retrofit module might have been programmed differently, but now that I've seen it work with level sensors, I don't think they did anything other than slap a new sticker on it. So, just as a tip for anyone retrofitting Litronics, don't pay Porsche $700 for the complete kit, pay them about $100 for the wiring harness (or don't if you can find an OEM litronic harness with sensors, or are brave enough to make your own) and buy a used control module. I got mine on eBay for $20 with a mounting bracket that the retrofit forgoes for Velcro. If you do insist on buying new parts, the PNs for the original module seem to be ~$100 cheaper than the retrofit module. Hope this helps save some people time and/or money.

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