I'm hoping that someone out there may have a schematic of the C354 connector into the SRS ECU Z151 on a 1996 Discovery 1. The SRS circuit (with a new fully charged battery) is diagnosed with a low voltage condition and the SRS will not reset. I would like to ascertain that connector pin No. 1 is the input voltage terminal. Appreciate your assistance. Thanks, Tony G, NZ

 

Would be pin 1-4 or pin 15(goes to engine fuse box).

9 is the data link, 12/13 are the cluster, and 14 is ground.

I believe you need to clear the codes from the SRS module as it stores the fault codes in memory.

 

nearly all the schematics you'll ever need are in the google drive linked in my signature. Knock yourself out.

 

Many thanks Walt. The issue is the Rave manual excludes wiring schematic on the SRS system. The diagnostic error refers to i) blown LEDs (2) in the instrument cluster, or ii) low or absent voltage in the SRS circuitry. I was intending to test by linking a 12v battery fused source into the SRS module and rerunning the diagnostic. Cheers Tony

 

Many thanks for your reply, Logan. The instrument LEDs in the cluster are good. I had to replace the battery and I suspect there may be a parasitic leak somewhere. I have checked the currents on all fuses at a constant 20 milliamps. So I'm buggered on what to do next apart from tracing the circuits back from the SRS controller. The truck has an intermittent engine cutout fault, which I thought I had solved, but it reappeared. I'm wondering whether these issues are related. Appreciate your help. Regards Tony G, NZ