X Series With "U" And "L" V8'S; H Series With 140 L-4, Standard Steering; H Series With 140 L-4, Power Steering - Pontiac TRANS AM 1977 Service Manual

ENGINE ELECTRICAL
-.
VIEW A
Fig. 6D-22P X Series With "U" and "L"
V8's
Fig. 6D-22Q H Series With 1 4 0 L-4, Standard Steering
On-Car Test
This on-car test procedure helps to quickly determine if
a problem exists in the generator/regulator circuit. If you do
not obtain the proper results in this test, the generator must
be dismantled and the regulator removed for further testing.
1. Turn the Tester OFF.
2. Make sure a regulator is not installed in the Tester
regulator holder.
3. Plug the on-car testing accessory cable into the
accessory socket on the Tester front panel.
Fig. 6D-22R H Series With 1 4 0 L-4, Power Steering
4. Disconnect the regulator connector from the
generator. Then plug the on-car testing accessory cable in its
place. Connect the ground lead (alligator clip) to the
generator case.
5. Test the generator/regulator circuit using steps 2, 3,
4 and 15 of the instruction label located on the inside of the
case cover. If you do not obtain the proper lamp and/or
voltmeter indication, or if either or both lamps flicker on and
off when you perform these steps, the regulator must be
removed from the generator for further testing to determine
whether the problem is in the generator or in the regulator.