What is a normal pulse rate? - Cars & Trucks

https://www.700r4transmissionhq.com/chevy-avalanche-speedometer-not-working/

This may help you.

hello sir,

absence of ground pulse means there is some kind of shorting circuit in your control circuit.

which can make the ground pulse to get shorted there itself preventing it to reach the circuit properly.

thank you

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good day

Did use light emiting diodes to test for pulse or DMV And do you know specificly what 3 coil packs that are not sending a pulse normally it would be the ECM crank sensor is what sends the pulse to the ECM if you have three that are pulsing its not the crank sensor is working if it is a random misfire the crank senson could be intermittent does it start and run with bad idle and now power have to be + witch 3 that are not pulsing

There is no dinger as the other guy suggests . sound comes from the driver door speaker .
The audible warnings alert the driver of a system concern or a critical vehicle condition. The radio generates the audible warnings through the left front speaker. The radio receives audible warning requests via the class 2 serial data line. If the radio receives multiple audible warning requests, the warning with the highest priority sounds first. On vehicles with an audio amplifier, the amplifier instead of the radio generates the audible warnings and receives audible warnings requests via the class 2 serial data line. Either the radio or the audio amplifier is the chime producer. The following lists the audible warning priority and the pulse rate:
Fast rate chime (150 pulses per min)
Medium rate chime (100 pulses per min)
Slow rate chime (50 pulses per min)
Turn signal reminder (will pulse at turn signal flasher rate)

Your best bet ,wear your seatbelt . so the sound goes off . If you do wear the seat belt and the chime sounds ,have a qualified repair shop check it .

relay

Normal,, there is a piston that is spring loaded. When the RPM drops the valve pulses.

The audible warnings alert the driver of a system concern or a critical vehicle condition. The radio generates the audible warnings through the speaker. The radio receives audible warning requests via the serial data circuit. If the radio receives multiple audible warning requests, the warning with the highest priority sounds first. The following lists the audible warning priority and the pulse rate:
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Fast rate chime (200 pulses per minute)

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Medium rate chime (150 pulses per minute)

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Slow rate chime (50 pulses per minute)

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Single chime

Your blood pressure rises with each heartbeat and falls when your heart relaxes between beats. While BP can change from minute to minute with changes in posture, exercise, stress or sleep, it should normally be less than 120/80 mm Hg (less than 120 systolic AND less than 80 diastolic) for an adult age 20 or over.

The normal pulse for healthy adults ranges from 60 to 100 beats per minute. The pulse rate may fluctuate and increase with exercise, illness, injury, and emotions. Females ages 12 and older, in general, tend to have faster heart rates than do males.

check your sliders may need cleaned .but a pulse is normally bent rotors.

Has nothing to do with the ABS ,wheel speed sensor . You vehicle use's a VSS vehicle speed sensor on the transmission . This VSS is a input to the PCM- engine computer . The PCM sends this info. in a message over the class 2 serial data bus, a communication network for the control modules ,to the instrument cluster . The cluster has a microprocessor with logic programmed in . Having the instrument cluster ,BCM ,an PCM checked for DTC'S - diagnostic trouble code's would be a good step ,plus viewing data to the instrument cluster . Is the PCM sending speed data to the instrument cluster .

Speedometer
The IPC displays the vehicle speed based on the vehicle speed signal from the PCM. The PCM converts the data from the vehicle speed sensor to a 4000 pulses/mile signal. The IPC uses the vehicle speed signal circuit from the PCM in order to calculate the vehicle speed. The speedometer defaults to 0 km/h (0 mph) if a malfunction in the vehicle speed signal circuit exists.

DTC B0540
The DIC receives the vehicle speed information from the PCM. The PCM converts the data from the vehicle speed sensor to a 4000 pulses/mile signal. The PCM also sends a class 2 message to the DIC indicating the vehicle speed. If the DIC determines there is a loss of the vehicle speed signal from the PCM due to a vehicle speed signal circuit malfunction, a DTC sets.
DTC P0608
The PCM creates the vehicle speed output signal by pulsing the circuit to ground. The PCM pulses the circuit at the same rate as the vehicle speed signal input. The PCM monitors the voltage on the vehicle speed output circuit. If the PCM determines the voltage is out of the normal operating range, a DTC sets
DTC P0654
The PCM creates the engine speed output signal by pulsing the circuit to ground at a predetermined hertz rate. The PCM pulses the circuit at the same rate as the engine speed signal input. The PCM monitors the voltage on the engine speed output circuit. If the PCM determines the voltage is out of the normal operating range, a DTC sets.
Speedometer and/or Odometer Inaccurate or Inoperative (Gas)
Install a scan tool.
Raise the vehicle drive wheels. Refer to Lifting and Jacking the Vehicle in General Information.
Start the engine.
Place the transmission into drive for an automatic transmission or third gear for a manual transmission.
With the scan tool, observe the Vehicle Speed parameter in the PCM Engine Data 1 data list.
Does the Vehicle Speed parameter match the speedometer display?

Your best bet , take your vehicle to a qualified repair shop .