Preliminary Check
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1998 Volvo V90, 1998 Volvo V70, 1998 Volvo S90, 1998 Volvo S70, and 1997 Volvo V90. However, it is still accessible from the selected car via links, so may be relevant.
Turn ignition off. Disconnect PCM connector. PCM is located at right front of engine compartment. Visually inspect all terminal connector sleeves to ensure no terminals are damaged.