SHAFT AS 1353225 - Caterpillar

System Operation Description:Use this procedure to troubleshoot suspect problems with the primary circuit for the ignition transformers.This procedure covers the following diagnostic codes:
301-5 Ignition Transformer Primary #1 : Current Below Normal
301-6 Ignition Transformer Primary #1 : Current Above Normal
302-5 Ignition Transformer Primary #2 : Current Below Normal
302-6 Ignition Transformer Primary #2 : Current Above Normal
303-5 Ignition Transformer Primary #3 : Current Below Normal
303-6 Ignition Transformer Primary #3 : Current Above Normal
304-5 Ignition Transformer Primary #4 : Current Below Normal
304-6 Ignition Transformer Primary #4 : Current Above Normal
305-5 Ignition Transformer Primary #5 : Current Below Normal
305-6 Ignition Transformer Primary #5 : Current Above Normal
306-5 Ignition Transformer Primary #6 : Current Below Normal
306-6 Ignition Transformer Primary #6 : Current Above Normal
307-5 Ignition Transformer Primary #7 : Current Below Normal
307-6 Ignition Transformer Primary #7 : Current Above Normal
308-5 Ignition Transformer Primary #8 : Current Below Normal
308-6 Ignition Transformer Primary #8 : Current Above Normal
309-5 Ignition Transformer Primary #9 : Current Below Normal
309-6 Ignition Transformer Primary #9 : Current Above Normal
310-5 Ignition Transformer Primary #10 : Current Below Normal
310-6 Ignition Transformer Primary #10 : Current Above Normal
311-5 Ignition Transformer Primary #11 : Current Below Normal
311-6 Ignition Transformer Primary #11 : Current Above Normal
312-5 Ignition Transformer Primary #12 : Current Below Normal
312-6 Ignition Transformer Primary #12 : Current Above Normal
313-5 Ignition Transformer Primary #13 : Current Below Normal
313-6 Ignition Transformer Primary #13 : Current Above Normal
314-5 Ignition Transformer Primary #14 : Current Below Normal
314-6 Ignition Transformer Primary #14 : Current Above Normal
315-5 Ignition Transformer Primary #15 : Current Below Normal
315-6 Ignition Transformer Primary #15 : Current Above Normal
316-5 Ignition Transformer Primary #16 : Current Below Normal
316-6 Ignition Transformer Primary #16 : Current Above Normal
1752-5 Ignition Transformer Primary #17 : Current Below Normall
1752-6 Ignition Transformer Primary #17 : Current Above Normal
1753-5 Ignition Transformer Primary #18 : Current Below Normal
1753-6 Ignition Transformer Primary #18 : Current Above Normal
1754-5 Ignition Transformer Primary #19 : Current Below Normal
1754-6 Ignition Transformer Primary #19 : Current Above Normal
1755-5 Ignition Transformer Primary #20 : Current Below Normal
1755-6 Ignition Transformer Primary #20 : Current Above NormalThe master Electronic Control Module (ECM) has internal circuit drivers for the ignition transformers on the left side of the engine. Each circuit driver creates a signal of +108 volts. The signal goes to the high side of the primary circuits of the ignition transformers. The transformers deliver high voltage (8000 to 37,000 volts) to the spark plugs. The ignition wiring is continuous from the master ECM P2 connector to the individual transformers for the cylinders with an even number.The slave ECM has internal circuit drivers for the ignition transformers on the right side of the engine. Each circuit driver creates a signal of +108 volts. The signal goes to the high side of the primary circuits of the ignition transformers. The transformers deliver high voltage (8000 to 37,000 volts) to the spark plugs. The ignition wiring is continuous from the P4 connector on the slave ECM to the individual transformers for the cylinders with an