Wiper system, windshield, pulse, variable delay

Years 1986–88, 1998, 2002–05, 2009 Models 5 Factory citations 6

Also described as Windshield wiper system, intermittentWindshield wipers, variable delayWindshield wipers, intermittentWiper system, windshield, pulse

Also documented for Buick Chevrolet GMC Oldsmobile

Documented applications

Firebird — Third generation (1982–1992)

1986–1988 Factory-verified

a content of option package 2 (W63) in 1987 and of preferred equipment group 1SA in 1988; Firebird years: thirdgen.org label decodes 1986; 3rdgenformula option pages 1987–1988; shared F-body code; cited from the Camaro kits

GM Heritage factory kit — 1986 Chevrolet Camaro, p.22.
GM Heritage factory kit — 1987 Chevrolet Camaro, p.34.

G3 — Daewoo Kalos (T250) / Aveo5 twin (2009)

2009 Factory-verified

GM factory document — 2009 pontiac g3 rpo code list, p.1.

Grand Am — N-body (1992–1998)

1998 Factory-verified

GM factory document — 1998 pontiac grand am rpo code list, p.1.

Grand Prix — G-body (1983–1987)

1986 Single-source

the dealer listing of one restored 1986 2+2, which cannot show whether the item was ordered alone or in a group, so the row is single-source

Sunfire — J-body (1995–2005)

1998, 2002–2005 Factory-verified

GM factory document — 1998 pontiac sunfire rpo code list, p.1.
GM factory document — 2005 pontiac sunfire rpo code list, p.1.

This page aggregates every documented appearance of CD4 in the Pontiac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.