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Message: [QUOTE="ActionRick, post: 47655, member: 251"] DTCs P1294 and P1293 indicate an open circuit exists on the high side circuit between the IDM and the injectors. The following table lists the circuits to inspect while performing these pinpoint tests, based on the DTC retrieved during the KOEO On-Demand and Injector Electrical Self Tests. DTC High Side Injector Bank P1294 878 (PK/Y) Left P1293 1087 (O) Right AB11 DIAGNOSTIC TROUBLE CODES (DTCs) P1271-P1278: CHECK FOR OPEN BETWEEN INJECTOR HIGH SIDE TO LOW SIDE AT VALVE COVER CONNECTOR DTCs P1271-P1278 indicate a low side-to-high side open in the circuit between the IDM and the injector. The following table lists the circuits to inspect while performing these pinpoint tests, based on the DTC retrieved during the KOEO On-Demand or Injector Electrical Self Tests. Note: If all of the DTCs associated with an entire bank are retrieved, the high side circuit is most likely open. Cyl. DTC Low Side High Side Bank 1 P1271 555 (T) 1087 (O) Right 2 P1272 556 (W) 878 (PK/Y) Left 3 P1273 557 (BR/Y) 1087 (O) Right 4 P1274 558 (BR/LB) 878 (PK/Y) Left 5 P1275 559 (T/BK) 1087 (O) Right 6 P1276 560 (LG/O) 878 (PK/Y) Left 7 P1277 561 (T/R) 1087 (O) Right 8 P1278 562 (LB) 878 (PK/Y) Left [/QUOTE]

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