20 Most Recent 2007 Chevrolet Silverado Classic SS New Cars - Page 4 Questions & Answers

You replaced the SDM , was it programmed ?

Press the power button. Access the clock via the menu button. Finally press the dash buttons that are located right under each display to set the hour, minute, month, day, and year on the 2013 silverado.

Vacuum diagram is normally under hood by radiator unless it has gotten torn off.

Should be on the firewall under the hood. Behind the dist. Cap or in that area.

DTC P1637 The powertrain control module (PCM) / engine control module (ECM) uses the charge indicator control circuit, and the generator 2 turn on signal circuit on diesels with dual generators, to control the generator(s). A high side driver within the PCM/ECM allows the PCM/ECM to turn the generator ON and OFF. When generator operation is desired, the PCM/ECM sends a 10-11 volts-volt signal to the voltage regulator via the generator turn on signal circuit. This causes the voltage regulator to begin controlling the generator field circuit. Once the generator is enabled by the PCM/ECM, the voltage regulator controls generator output independently of the PCM/ECM. Under certain operating conditions, the PCM/ECM can turn OFF the generator by turning OFF the voltage on the charge indicator control circuit. The PCM/ECM has fault detection circuitry which monitors the state of the charge indicator control circuit. If the fault detection circuit senses a voltage other than what is expected, the charge indicator will turn ON and this DTC will set. The voltage regulator also contains fault detection circuitry. If the regulator detects a problem, the regulator will ground the charge indicator control circuit, pulling the voltage low. This also causes the charge indicator to turn ON and the PCM/ECM to set the DTC. What engine is in your truck ? DTC P1638 The powertrain control module (PCM) uses the generator field duty cycle signal circuit to monitor the duty cycle of the generator. The generator field duty cycle signal circuit connects to the high side of the field winding in the generator. A pulse width modulated (PWM) high side driver in the voltage regulator turns the field winding ON and OFF. The PCM uses the PWM signal input to determine the generator load on the engine. This allows the PCM to adjust the idle speed to compensate for high electrical loads. The PCM monitors the state of the generator field duty cycle signal circuit. When the key is in the RUN position and the engine is OFF, the PCM should detect a duty cycle near 0 percent. However, when the engine is running, the duty cycle should be between 5-100 percent. The PCM monitors the PWM signal using a key ON test and a RUN test. During the tests, if the PCM detects an out of range PWM signal, DTC P1638 will set. When the DTC sets, the PCM will send a class 2 serial data message to the IPC to illuminate the charge indicator.

The blinker sound is through you door speaker. Need the radio to work properly to hear the blinker.

Short circuit most likely in rear light wiring

If you have compression and spark, that leaves fuel. A fuel injector balance test would be next step. Unfortunately not a simple task for that model year.

try fluid and filter you my get lucky --but try scanning first for any trouble codes

Check for rodent damage. Do head lights or horn work (no key necessary) ?

If neither the headlights nor the horn are working then the BCM is not functioning. Check BCM fuses (more than one).

.threw low voltage to speed sensor ??? What's the code number P0xxx what ?. low voltage to speed sensor so you replaced it ? You people crack me up. you have a code reader pull a code an replace a part ,that's not how it works . In a service repair manual there are diagnostic procedures to follow for every code . Testing an not guessing is how to fix these type problems . I'm leaning towards the ignition switch what could it be . Wheel sensors.? Tcm? Speed sensor buffer ? Computer ? Quit trying to play auto tech . an take it to a qualified repair shop. you have no clue . The emergency brake light as you call it also comes on when there is a problem with the brake system and or the abs system ,hooking up a professional type scan tool an checking abs codes should also have been done . Which engine does yours have ? Engine Controls - 4.3L Engine Controls - 4.8L, 5.3L, and 6.0L

the ecm and bcm would need to be flashed to your vehicle

Automotive AC systems require periodic service. It could simply be low on refrigerant or other failure. Requires testing to determine root cause.Automotive AC systems of the era leak and every 3-5 years require additional refrigerant and possibly oil.

Check wiring harness may be broken somewhere or check relays and fuses.

Chevy IPCs of that era are notorious for draining the battery. The cluster fails to go into low power mode due to metal migration (solder whiskers).

See following Eric O videos... all you ever need to know on trouble shooting and repair.

https://youtu.be/irkWeLhl078
https://youtu.be/lhJpJHp9Ud4

I went thought the same thing with my 2012 Silverado crew cab . no movement to drivers window all others work Fine through master switch . replaced window motor - nothing happened replaced window regulator because i messed it up replacing window motor - replaced master switch twice - still nothing finally yesterday after work I pulled the covering off the wiring harness between door and cab and there she was broken ground wire - black wire . fixed it and window came back to life .

check for power to switch --proper install --or possible adjustment

Jump the switch side of relay with jumper wire, cavities for terminals 30 and 87 in diagram. As you see in diagram, terminal 87 shows to be fuse protected and hot all the time. switch side is left side of relay in diagram. The pump should run with jumper, don't need the key. You can also see fuel pump/oil pressure switch, redundant power supply to the fuel pump. Even w/o the relay, once you crank it enough to bring up oil pressure, that switch closes and the pump should run, depending.

Note the ps in picture. Your power steering pump is belt driven. I looked at info for 5.0L engine.

Chevy doesn't use vacuum modulators anymore