: 9 codes today, i reckon a bad earth?



nigelb
11-27-06, 05:11 PM
this morning the car started on the button, i drove only 2 miles to my friends house for coffee.
got back in it 3 hours later and it started fine then idled rough for a few moments.
drove 6 miles then stopped to do a bit of business.
got in the car to come home and the car started but stalled 3 times in succession.
got home and pulled the codes, all had gone into history, nothing current;

msm b1327 voltage low
pcm p1599 stall/near stall
sdm b1001 id numbers not matching
sdm u1016 loss of comms with pcm
sdm u1040 loss of comms with abs
sdm u1096 loss of comms with ipc
sdm u1064 loss of comms with dim
ttm b1982 volts too high
ttm u1016 loss of comms with pcm

all seeem to relate to a power issue, i checked the battery connections etc, but they seem fine.
we've had a real lot of rain here over the past week, the trunk was full of water and i've had to take out the carpet to dry it out.
i'm wondering if the rain has something to do with this.

the car is now running fine but i'm just curious to the cause.

JimD
11-27-06, 06:18 PM
The B1327 (low voltage) is a clue. If the starter is spinning the engine at normal crank speeds, you could have one or more loose/corroded/damaged cable end connectors somewhere in the battery - fuse block - alternator interconnect system.

The B1327 is the probable cause of

sdm b1001 id numbers not matching
sdm u1016 loss of comms with pcm
sdm u1040 loss of comms with abs
sdm u1096 loss of comms with ipc
sdm u1064 loss of comms with dim
ttm u1016 loss of comms with pcm

Low voltage (9 volts or less) causes some of the other modules to lose their minds and report false information. Investigate the B1327.