Test DP: Step 10
10) Continuous Memory Code 29: Check For Battery Voltage Code 29 indicates that there is insufficient input to the ECA from the VSS. Possible causes for this fault are, a faulty VSS, an open or shorted circuit, or a faulty ECA. Turn ignition switch to RUN position. Raise vehicle on a hoist and disconnect VSS. Set DVOM on 20-volt scale. Measure voltage between pin No. 1 and pin No. 3 of the VSS vehicle harness connector. If voltage is greater than 10.5 volts, go to next step. If not, check fuse No. 20. If fuse is okay, repair open circuit, reconnect VSS and repeat QUICK TEST.