Test Notes

Normal Operation
The diagnostic monitor measures the resistance between Pin 22 (Circuit 620 P/LB) and Pin 3 (diagnostic monitor reference ground). If the diagnostic monitor measures a difference of more than 2.0 ohms between pin 22 and pin 3, it will flash a Code 46.

NOTE: Pin 22 is used in a three primary crash sensor system as the third sensor ground monitor. Because only two primary crash sensors are used here, pin 22 is spliced into the center radiator crash sensor's ground monitor.

Possible Causes
High resistance on Pin 22 (Circuit 934 BR) to ground can be caused by:
1. An open or damaged wire in Circuit 620 (P/LB) from pin 22 of the diagnostic monitor harness connector to the splice which joins it to the P/LB wire coming from pin 21.