Diagram for the turn signal set up - 1989 Chevrolet Silverado 2500

It depends on the make , model an year vehicle an what controls that signal light . Lot's of vehicles use a BCM - body control module to turn on these light's an also sends a message to the radio for the sound . Sound could come from the driver door speaker or speaker inside the instrument cluster . Do you hear sound for the right turn signal ? Looking at a wiring diagram would show what's all involved in the turn signals for your vehicle. Free wiring diagrams here http://www.bbbind.com/tsb-wiring-diagrams-database/.

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Do you know how to test automotive electrical circuits using a DVOM - digital volt ohmmeter ? Looking at a wiring diagram to see what all is involved in making the right turn signal work ? Free wiring diagrams here http://www.bbbind.com/free-tsb/ Enter vehicle info. Year , make , model an engine size . Under system click on lighting ,then under subsystem click on turn signal lamps . Click the search button then the blue link . Looking at the diagram for the turn signals i see the turn signal switch is a input to the BCM - body control module . The turn signals are controlled by the BCM . Having a professional scan tool to check input data to the BCM an out put control for the turn lamps on the right side would save time .
https://www.youtube.com/watch?v=YaYtCVBodpw&t=98s

Turn Signal Lamps
Battery voltage supplied to the body control module (BCM) from the fuses listed below is used for turn signal and hazard lamp operation.
• LT TRN/SIG fuse for the left turn signals
• CTSY/RF TRN fuse for the right front turn signal
• RR TRN/SIG fuse for the right rear turn signal
When the turn signal switch is place in either the LEFT or RIGHT position, ground from G300 is applied through the turn signal switch signal circuit to the BCM indicating the turn signal request. In response to this signal, the BCM applies a pulsating voltage to the front and rear turn signal lamps supply voltage circuits cycling the lamps ON and OFF. At the same time the BCM sends a GMLAN serial data message to the instrument panel cluster (IPC) to cycle the appropriate turn signal indicator ON and OFF.
Ground for the turn signal lamps is supplied as follows:
• G104 provides ground for the left and right front turn signal lamps
• G402 provides ground for the left rear stop/tail/turn signal lamps
• G403 provides ground for the right rear stop/tail/turn signal lamps
• The driver door module (DDM) provides a low reference for the left outside rearview mirror turn signal
• The front passenger door module (FPDM) provides a low reference for the right outside rearview mirror turn signal

Looking at wiring diagrams for the systems with the problem to see if they share a common power supply or ground connection . Sounds like loose connection . Do you know what a wiring diagram is ? How to use a DVOM - digital volt ohmmeter to test electrical circuit's . Free wiring diagrams here http://www.bbbind.com/free-tsb/ Enter vehicle info. year , make , model an engine size .
The body control system consists of the body control module (BCM) and its associated controls. Battery positive voltage is provided to the BCM from the TURN/HAZ fuse and the CHMSL/BKUP fuse in the fuse block instrument panel (I/P). The module grounds are wired to ground G200, G201 and G301. The BCM is wired to the class 2 serial data communication bus as well as discrete input and output terminals to control the functions of the vehicles body .
Cruise Control Inoperative/Malfunctioning
Circuit/System Description
The cruise control switch is an input to the engine control module (ECM) / powertrain control module (PCM). The ECM (5.3L) / PCM (3.8L) monitors the cruise control set/coast and resume/accelerate switch signal circuit in order to detect when a cruise control function has been requested. The ECM detects a specific voltage signal on the cruise control set/coast and resume/accelerate switch signal circuit when a cruise control function switch is activated, with each switch having a different predetermined voltage value.
Turn Signal Lamps
The STOP/TURN/HAZARD fuse in the instrument panel (I/P) fuse block supplies battery positive voltage to the body control module (BCM) for the turn signal lamps. When the turn switch is placed in the LEFT TURN or RIGHT TURN position, ground is applied from G202 through the turn switch, to the turn signal switch signal circuit and to the BCM. The BCM then applies battery positive voltage to front and rear turn signal lamps supply voltage circuits. The left front turn signal lamp is grounded at G100, right front at G101, left rear at G301 and the right rear is at G302.
Stop Lamps
The turn signal lamps are also used as stop lamps. The STOP/TURN/HAZARD fuse in the instrument panel (I/P) fuse block supplies battery positive voltage to the body control module (BCM) for the stop lamps.
A 10-volt reference signal and a low reference signal is applied from the BCM to the brake pedal position (BPP) sensor. When the brake pedal is applied, the BPP sensor applies a signal to the BPP sensor signal circuit to the BCM. The BCM then applies battery positive voltage to the LR and RR stop/tail/turn lamps through the LR and RR stop/turn lamps supply voltage circuit. The BCM also supplies a battery positive voltage to the CHMSL through the stop lamp supply voltage circuit. The ground for the LR stop/tail/turn lamp is supplied from G301 The ground for the RR stop/tail/turn lamp and for the CHMSL is supplied from G302.

Having the vehicle checked for DTC'S - diagnostic trouble code's mite help . Not at auto zone or advance etc... they can not read BCM codes .

1967-72 all use the same wiring for signals, here is that diagram.

Here is a link if you can't read this http://www.fooddaily.club/1972-mustang-wiring-diagram/1970-ford-mustang-turn-signal-wiring-diagram-stunning-radio-in-07-1972-with-diag

Free wiring diagrams here http://www.bbbind.com/free_tsb.html Enter vehicle info. year , make , model and engine size . Under system click on lighting , then under subsystem click turn signal lamps .Click the search button , then click on the blue link . The whole wiring diagram for the turn signals will be yours to view .

Your problem is not a fuse if just the right front isn't working , same for all indicators .
Turn Signal Lamps
The TURN fuse in the fuse block - I/P provides ignition positive voltage to the turn signal relay. The turn signal lamps may only be activated with the ignition switch in the ON position. When the turn signal switch is placed in either the left or right position, current flow is from the turn signal relay output to the turn signal switch assembly. The turn signal relay sends an ON-OFF voltage signal to either the left or right turn signals and their instrument panel cluster (IPC) indicator through the turn signal switch.

an it's not a bad relay , if there is no B+ voltage at the lamp you have an open circuit . You would need a wiring diagram to test circuit from turn lamp back to source voltage to find open . free wiring diagrams at www.bbbind.com . video on youtube testing voltage drop Mastering Voltage Drop Testing with Pete Meier and Jerry Truglia

http://troubleshootmyvehicle.com/gm/4.3L-5.0L-5.7L/
how-to-test-the-wiper-switch-1http://troubleshootmyvehicle.com/gm/4.3L-5.0L-5.7L/
how-to-test-the-turn-signal-switch-5
http://troubleshootmyvehicle.com/gm/4.3L-5.0L-5.7L/
how-to-test-the-wiper-switch-1
For starters

The turn signals on your Windstar are controlled by the front electronic module and the rear electronic module. If you are having problems with the turn signals, you should BEGIN diagnosis by scanning these modules for fault codes.

Wjth all that said, If you are having problems with the rear lights, failure of the rear electronic module is pretty common for Windstars.

Hello Jm_green.

In 1998 the 2.2 Sunfire has no way to set ignition timing.
Timing is set by reading crankshaft position (not adjustable) and that signal is sent to the computer which in turn signals the ignition module when to fire the coils.

Just in case you are talking about changing the timing gears, here is a diagram.



There you are, thank you for using FixYa.

Kl

It is the combination switch on the end of the turn signal stalk see diagram for E-Class same switch
it is S4 in diagram