Generator - Light ON/False Trouble Code 42
84-2466 (VI)
MAR., 1985
Subject: FALSE SETTING OF TROUBLE CODE 42 ON CLCC VEHICLES
Model and Year: 1984 Celebrity w/2.8L LE2/LH7 1984 Caprice/Impala w/5.0L LG4
1984 Citation w/2.8L LE2/LH7 1984 Caprice/Impala w/5.7L LM1
1984 Camaro w/2.8L LC1/LL1 1984 Caprice/Impala w/3.8L LC3
1984 Camaro w/2.8L LG4/L69 1984 Monte Carlo w/3.8L LC3
1984 Monte Carlo w/5.0L LG4/L69
TO: ALL CHEVROLET DEALERS
1984 CLCC VEHICLES WITH MALFUNCTION CODE 42:
Some of the above vehicles may experience a false trouble Code 42. The false code is detected in two (2) ways -- either a hard check engine light after an ignition check (ignition off and back on within five (5) seconds), or no check engine light but malfunction Code 42 stored in memory. The incidents are generated on vehicles incorporating a "generator" light and no incidents with voltmeter.
This condition can be alleviated by connecting P/N 12047479 (diode jumper assembly) as shown in attached graphics.
Labor Operation #J-4050 - Labor Time .3