TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
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CH/Charging System, page 6

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Charging System — MK4 Supra Charging System, page 6
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Page text (OCR transcript)
CH–5
CHARGING SYSTEM – ON–VEHICLE INSPECTION

Type A
Type B
P10652

• Check that the arrow mark on the belt tensioner falls within area A of the scale.
If it is outside area A, replace the drive belt.
HINT:
• When a new belt is installed, it should lie within area B. If not, the drive belt is not correct.

CORRECT    WRONG  WRONG
AC2024                                                    Z05953

• After installing a drive belt, check that it fits properly in the ribbed grooves.
• Check by hand to confirm that the belt has not slipped out of the groove on the bottom of the pulley.
4. REMOVE ENGINE UNDER COVER

2JZ-GTE (M/T)

Except 2JZ-GTE (M/T)

P11572
P10560                                                    Z09079

5. VISUALLY CHECK GENERATOR WIRING AND LISTEN FOR ABNORMAL NOISES
(a) Check that the wiring is in good condition.
(b) Check that there is no abnormal noise from the generator while the engine is running.
6. CHECK CHARGE WARNING LIGHT CIRCUIT
(a) Warm up the engine and then turn it off.
(b) Turn off all accessories.
(c) Turn the ignition switch "ON". Check that the charge warning light is lit.
(d) Start the engine. Check that the light goes off. If the light does not go off as specified, troubleshoot the charge light circuit.

Ammeter
Disconnect Wire from Terminal B
Battery
B
Generator
Voltmeter
CH0732                                                    Z03473

7. INSPECT CHARGING CIRCUIT WITHOUT LOAD
HINT: If a battery/generator tester is available, connect the tester to the charging circuit as per manufacturer's instructions.
(a) If a tester is not available, connect a voltmeter and ammeter to the charging circuit as follows:
• Disconnect the wire from terminal B of the generator, and connect it to the negative (–) probe of the ammeter.