Generators & Regulators: Other — Mazda MPV II (1999-2003)

Generators & Regulators: Other Mazda MPV II

Charging System 4 illustrations ~333 words

BELT DEFLECTION

Measure belt deflection in center of longest pulley span. See BELT DEFLECTION SPECIFICATIONS table. If belt deflection is not as specified, adjust as necessary.

Application				(1) Deflection - In. (mm)
Millenia
2.3L				(2)
2.5L
New Belt				.22-.26 (5.5-6.5)
Used Belt				.26-.30 (6.5-7.5)
MPV				(2)
MX-5 Miata
New Belt				.22-.28 (5.5-7.0)
Used Belt				.24-.30 (6.0-7.5)
Protege
1.6L
New Belt				.22-.28 (5.5-7.0)
Used Belt				.24-.30 (6.0-7.5)
2.0L
New Belt				.26-.30 (6.5-7.5)
Used Belt				.28-.35 (7.0-9.0)
626
2.0L
New Belt				.26-.28 (6.5-7.0)
Used Belt				.28-.35 (7.0-9.0)
2.5L
With A/C
New Belt				.22-.26 (5.5-6.5)
Used Belt				.26-.30 (6.5-7.5)
Without A/C
New Belt				.24-.28 (6.0-7.0)
Used Belt				.28-.31 (7.0-8.0)
(1) With 22 lbs. (10 kg) applied to belt. (2) Tension is controlled by an automatic adjuster. No adjustment is required. If belt tensioner has reached its limit of travel, replace belt.

(1)	With 22 lbs. (10 kg) applied to belt.

(2)	Tension is controlled by an automatic adjuster. No adjustment is required. If belt tensioner has reached its limit of travel, replace belt.

BELT DEFLECTION SPECIFICATIONS

GENERATOR OUTPUT

Note. On MPV and Protege, generator output is controlled by PCM. If a generator no charge or overcharge condition exists, check PCM DTCs. See appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.

Millenia, MX-5 Miata & 626

Connect an in-line ammeter (100-amp minimum) between generator terminal "B" connector and terminal "B" of wiring harness connector. (Scheme 10), (Scheme 12) or (Scheme 13). Turn headlights and all accessories on. Depress brake pedal. Operate engine at 2500-3000 RPM.
Measure and record generator output. See «GENERATOR MAXIMUM RATED OUTPUT»(ref-99361-S21336612992001071200000) table. If amperage is as specified, go to next step. If amperage is not as specified, repair or replace generator.
Turn off headlights and all accessories. Release brake pedal. Operate engine at 2500-3000 RPM and measure amperage under no-load condition. No-load amperage should be 5 amps or greater. If amperage is as specified, go to next step. If amperage is not as specified, repair or replace generator.
Operate engine at 2500-3000 RPM. Measure voltage between ground and terminals "S" and "L". If 14.1-14.7 volts do not exist, repair or replace generator. If 14.1-14.7 volts do exist, generator output is okay.

MPV

Connect an in-line ammeter (120-amp minimum) between generator terminal "B" connector and terminal "B" of wiring harness connector. (Scheme 11) Turn off all electrical loads. Operate engine at 2000-2500 RPM. Turn headlights and all accessories on and verify current reading increases.
Measure and record generator output. See «GENERATOR MAXIMUM RATED OUTPUT»(ref-99361-S21336612992001071200000) table. If amperage is as specified, go to next step. If amperage is not as specified, repair or replace generator.
Operate engine at idle. Measure voltage between terminal "B" and ground. If 13-15 volts do not exist, repair or replace generator. If 13-15 volts do exist, generator output is okay.