Code 17 - Rpm Signal Problem (3.8L): Notes
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 1993 Pontiac Bonneville, 1993 Oldsmobile Ninety-Eight, 1993 Oldsmobile Eighty-Eight, 1993 Buick Riviera, and 1993 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Test numbers refer to numbers on diagnostic chart.
- Verifies spark reference circuit is not shorted to ground or open in ignition jumper harness.
- If a window on harmonic balancer is lined up with 18X Hall Effect switch, ignition module will ground spark reference signal. Starter may have to be bumped several times to obtain a voltage reading.
- Voltage reading should be lower than reading obtained with engine not running, indicating a pulsed reference signal.