DTC C1117 (17): Engine Control System, Engine Speed Signal Line: Notes

CAUTION:

When attaching the tester lead to the ABS/TCS HU/CM or the ABS/TCS HU/CM harness connector, the SST (49 G066 001) must be used. (See ABS/TCS HU/CM (WITH TCS) OR ABS HU/CM (WITHOUT TCS) SYSTEM INSPECTION .)
When attaching the tester lead to the PCM, the SST must be used. (See POWERTRAIN CONTROL MODULE .)

NOTE:

DTC C1117 (17) may be stored if the engine is stalled or the ignition switch is turned off while the vehicle is driving at 10 km/h {6.2 mph} or more.

Fig 1: Detection Conditions & Possible Causes: DTC C1117 (17)
Courtesy of MAZDA MOTORS CORP.