Ignition switch wiring - 1991 Mercedes-Benz 190

Identify Components: Before starting, make sure you have the ignition switch and necessary wiring harness.

Disconnect Battery: Ensure the battery is disconnected to prevent any electrical accidents.

Locate Ignition Switch Wiring Diagram: Obtain a wiring diagram for the ignition switch and the Caterpillar 3116 engine. This will help you identify the correct wires to connect.

Mount Ignition Switch: Mount the ignition switch in a convenient and secure location within the vehicle.

Connect Wires: Using the wiring diagram, connect the wires from the ignition switch to the corresponding terminals on the Caterpillar 3116 engine. Typically, the ignition switch will have terminals labeled for various functions such as ignition, accessory, starter, and battery.

Test Connections: Once the wiring is completed, double-check all connections to ensure they are secure and correctly wired.

Reconnect Battery: Reconnect the vehicle's battery.

Test Ignition: Turn the ignition switch to the "ON" position and verify that electrical components such as lights, gauges, and accessories are functioning properly.

Start Engine: Attempt to start the engine and ensure that the starter engages and the engine cranks properly.

Final Checks: After successful installation, perform a final check of all connections and ensure that there are no loose wires or potential electrical hazards.

Some fault at the ignition switch , should be no battery voltage at that cable till ignition switch turned to start position , replace the switch or you could fit a button switch between ignition switch and solenoid wire .

PART COLOR LOCATION 12 VOLT CONSTANT WHITE/BLACK (+) and WHITE (+) IGNITION SWITCH HARNESS STARTER RED (+) IGNITION SWITCH HARNESS STARTER 2 N/A IGNITION 1 YELLOW (+) IGNITION SWITCH HARNESS IGNITION 2 N/A IGNITION SWITCH HARNESS IGNITION 3 N/A ACCESSORY/HEATER BLOWER 1 BLUE (+) IGNITION SWITCH HARNESS ACCESSORY/HEATER BLOWER 2 GREEN (+) IGNITION SWITCH HARNESS

95 Ford Ranger Auto Alarm Wiring Diagram.

You need to re-check your ignition wiring. Here is the wiring for the alarm.

Battery Constant 12v+ Positive Wire (+): Yellow
Battery Constant 12v+ Positive Wire Location: Ignition Switch Harness

Starter Positive Wire (+): Red/Light Blue
Starter Positive Wire Location: Ignition Switch Harness

Ignition Positive Wire (+): Light Green/Purple
Ignition Positive Wire Location: Ignition Switch Harness

Second Ignition Positive Wire (+): Black/Light Green
Second Ignition Positive Wire Location: Ignition Switch Harness

Accessory Positive Wire (+): Gray/Yellow
Accessory Positive Wire Location: Ignition Switch Harness

Parking Light Positive Wire (+): White/Black Or Brown
Parking Light Positive Wire Location: At Headlight Switch Or Low In Drivers Kick Panel

Power Door Lock Negative Wire (-): Pink/Yellow (Type B)
Power Door Lock Negative Wire Location: In Either Kick Panel

Power Door Unlock Negative Wire (-): Pink/Light Green (Type B)
Power Door Unlock Negative Wire Location: In Either Kick Panel

Door Trigger Positive Wire (+): Black/Light Blue
Door Trigger Positive Wire Location: In Drivers Kick Panel

Domelight Supervision Wire: Use Door Trigger (Requires Relay)
Domelight Supervision Wire Location: N/A

Horn Negative Wire (-): Yellow/Light Green
Horn Negative Wire Location: At Steering Column Harness

Tachometer Wire Negative Wire (-): Any Wire With A Tan Stripe Or A Yellow Stripe
Tachometer Wire Negative Wire Location: At Ignition Coil

Brake Light Positive Wire (+): Light Green
Brake Light Positive Wire Location: At Switch Above Brake Pedal

Factory Alarm Disarm Wire (-): Dark Green/Purple
Factory Alarm Disarm Wire Location: Low In Drivers Kick Panel

Factory Anti-Theft System: N/A
Factory Anti-Theft System Location: N/A

Here are the ignition switch wire and colors.

Constant 12V+ White/Green Ignition Switch Harness Starter Black/Red Ignition Switch Harness Ignition Black/Blue Ignition Switch Harness Accessory Yellow/Black Ignition Switch Harness

1991 Ford F150

Vehicle Battery Positive Wire (+): Yellow
Vehicle Battery Positive Wire Location: Ignition Switch Harness
Vehicle Ignition Wire (+): Red/Light Green
Vehicle Ignition Wire Location: Ignition Switch Harness
Vehicle Second Ignition Wire (+): N/A
Vehicle Second Ignition Wire Location: N/A
Vehicle Accessory Wire (+): Gray/Yellow
Vehicle Accessory Wire Location: Ignition Switch Harness
Vehicle Second Accessory Wire (+): N/A
Vehicle Second Accessory Wire Location: N/A
Automobile Engine Starter Wire (+): Red/Light Blue
Automobile Engine Starter Wire Location: Ignition Switch Harness
Automobile Second Engine Starter Wire (-): N/A
Automobile Second Engine Starter Wire Location: N/A
Factory Anti-Theft System: None
Factory Anti-Theft System Type: None
Car Key Sense Wire (-): Black/Pink
Car Key Sense Wire Location: At Steering Column Harness
Car Neutral Safety Wire (+): N/A
Car Neutral Safety Wire Location: N/A
Car Tachometer Wire (-): Tan/Yellow
Car Tachometer Wire Location: At Ignition Switch Control Module in Driver Fender Well
Car Speed Sense Wire: Gray/Black
Car Speed Sense Wire Location: Pin #3 at PCM Mounted on the Firewall
Car Parking Lights Wire (+): Brown
Car Parking Lights Wire Location: At Headlight Switch or Driver Side Kick Panel
Car Brake Lights Wire (+): Green
Car Brake Lights Wire Location: At Brake Switch Above the Pedal
Car Reverse Lights Wire (+): Black/Pink
Car Reverse Lights Wire Location: At Switch on Transmission
Car Horn Wire (-): Blue
Car Horn Wire Location: At Steering Column Harness

Sorry friend, this is as far as i can go to tel you how to hot wire the ignition. But with the color codes you should be able to figure it out, Good luck and keep me posted.

there should be a slot for each wire on back of ignition play with them till you get it right cant hurt anything

screwdriver works, which means the battery is good and the starter works. in between is the ignition switch. first you should check for 12V at the starter post w/ the smaller wire on it as the key is held in "start" position. if no, then you should probe the supply wire @ the ignition switch (Red wire) for constant 12V; if no, then there is a bad wire/fuse between the battery and the ignition switch. if it does then probe the ignition wire on the switch (Pink) w/ key in "on" position. if no voltage, then bad ignition switch. if yes, then probe the starter wire on the switch (Yellow) for 12V w/ key in "start" position. If no, then bad ignition switch. If yes, then check for wire break between ignition switch and starter

Battery Constant 12v+ Positive Wire (+): Black/Orange And Red/White
Battery Constant 12v+ Positive Wire Location: Ignition Switch Harness
Starter Positive Wire (+): Yellow
Starter Positive Wire Location: Ignition Switch Harness
Ignition Positive Wire (+): Blue (16 Gauge)
Ignition Positive Wire Location: Ignition Switch Harness
Second Ignition Positive Wire (+): Yellow/Red
Second Ignition Positive Wire Location: Ignition Switch Harness
Accessory Positive Wire (+): Blue (10 Gauge)
Accessory Positive Wire Location: Ignition Switch Harness
Second Accessory Positive Wire (+): Orange
Second Accessory Positive Wire Location: Ignition Switch Harness
Parking Light Positive Wire (+): Black/Yellow
Parking Light Positive Wire Location: At Headlight Switch
Power Door Lock Positive Wire (+): Orange/Violet
Power Door Lock Positive Wire Location: In Drivers Kick Panel, White 6-Pin
Power Door Unlock Positive Wire (+): Pink/Violet
Power Door Unlock Positive Wire Location: In Drivers Kick Panel, White 12-Pin
Door Trigger Negative Wire (-): Yellow
Door Trigger Negative Wire Location: At Headlight Switch
Domelight Supervision Wire: Use Door Trigger (Requires Relay)
Domelight Supervision Wire Location: N/A
Horn Negative Wire (-): Black/Red
Horn Negative Wire Location: At Steering Column Harness
Tachometer Wire Negative Wire (-): Gray
Tachometer Wire Negative Wire Location: At PCM, Connector 1, Pin A7. The PCM (powertrain control module) is located on the firewall next to the wiper motor.
Brake Light Positive Wire (+): White/Tan
Brake Light Positive Wire Location: At Switch Above Brake Pedal
Factory Alarm Disarm Wire (-): Black/Orange (To disarm requires a (-) negative through a 1565 ohm resistor and an extra relay to connect.)
Factory Alarm Disarm Wire Location: In Drivers Kick Panel, White 12 Pin Plug
Factory Anti-Theft System: N/A
Factory Anti-Theft System Location: N/A