Grand Prix V6-191 3.1L (1989)
Vehicle Speed Sensor: Technical Service Bulletins
Engine Controls - Updated Vehicle Speed Sensor Test
Bulletin Number:
89-8-23
Reference Number:
938131
Publish Date:
8/89
Subject:
SERVICE MANUAL UPDATE, SECTION 8A VEHICLE SPEED SENSOR TEST A
Models
Affected:
1988-89 GRAND PRIX
SERVICE MANUAL UPDATE
Service Manual Section 8A-33-2, 1988 and 1989 Pontiac Grand Prix.
The voltage measurement in Vehicle Speed Sensor Test A should read as follows:
Measure
Correct
For
Between
Voltage
Diagnosis
C8 (YEL)
and
Varying from
See 1
C2 (PPL)
0.1 to 0.5
volts AC
Please correct your Service Manuals.