What is the m relay for in the cls500 2006 - 2006 Mercedes-Benz Mercedes Benz CLS500

1. Fuel pump relay 2. Starter motor relay 3. Air conditioning relay 4. Headlight relay 5. Horn relay 6. Cooling fan relay 7. Wiper motor relay 8. ABS relay

Number Description 1 Ignition relay 2 Windshield wiper relay 3 Horn relay 4 A/C switch relay 5 Not used 6 WOT relay (petrol) 7 Power hold relay 8 Fuel pump relay (petrol) 9 Low beam relay 10 High beam relay

Hyundai Matrix - fuse box - engine compartment (gasoline) DescriptionAmpere rating [A]Protected components ALT120Generator B+40(A/CON, RR HTD, STOP, D/LOCK, HAZARD) Fuse ECU30Generator, Engine control relay, ECM RAD20Radiator fan relay IGN40Start relay, Ignition switch BLR40Blower relay P/WIN30Power window relay COND20Condenser fan relay #1 ABS30ABS control module, ABS bleeding connector ABS30ABS control module, ABS bleeding connector F/PUMP10Fuel pump relay INJ15Injector, lgnition coil SNSR10MAP sensor, Oxygen sensor, CP sensor, Knock sensor, Throttle position sensor ROOM LP10Audio, Room lamp, Overhead console lamp, lnstrument cluster DRL15DRL control module HORN10Horn relay A/CON10A/C relay FR FOG15Front fog lamp relay ECU10ECM, TCM LP20Tail lamp relay TAIL LH10Left rear combi lamp, Left position lamp, Left License lamp TAIL RH10Right rear combi lamp, Right position lamp, Right License lamp H/LP LH15Left head lamp H/LP RH15Right head lamp, (H/LP IND) Fuse Engine compartment (diesel) Hyundai Matrix - wiring diagram - fuse box diagram - engine compartment (diesel) DescriptionAmpere rating [A]Protected components FUSEALT100Generator B+40(A/CON, RR HTD, STOP, D/LOCK, HAZARD) Fuse, Deicer ECU30Generator, Engine control relay, ECM RAD20Radiator fan relay IGN40Start relay, Ignition switch BLR40Blower relay P/WIN30Power window relay COND20Condenser fan relay #1 ABS30ABS control module, ABS bleeding connector ABS30ABS control module, ABS bleeding connector F/PUMP10Fuel pump relay ECU30ECM No.5 (Batt+) ECU10ECM No.4 (Batt+), Stop lamp switch, PTC heater relay #1 SNSR10Glow plug relay, Assistor heater relay 1/2, Stop lamp switch, TDC sensor, EGR act, Throttle plate act, VGT vacuum ROOM LP10Audio, Room lamp, Overhead console lamp, lnstrument cluster, ETACS, Luggage lamp DRL15DRL control module HORN10Horn relay A/CON10A/C relay FR FOG15Front fog lamp relay ECU10ECM, TCM LP20Tail lamp relay TAIL LH10Left rear combi lamp, Left position lamp, Left License lamp TAIL RH10Right rear combi lamp, Right position lamp, Right License lamp H/LP LH15Left head lamp H/LP RH15Right head lamp, (H/LP IND) Fuse FUSIBLE LINKPTC HTR 140PTC heater relay #1 GLOW80GLOW relay PTC HTR 240PTC heater relay #2 FFHS30FFHS relay PTC HTR 340PTC heater relay #3 Inner Panel Hyundai Matrix - fuse box - inner panel DescriptionAmpere rating [A]Protected components H/LP IND10Head lamp indicator HTD IND10Defogger relay, Left(Right) outside mirror motor, Rear window motor A/CON10A/C Switch RR HTD30Defogger relay STOP10Stop lamp switch, Power window relay D/LOCK15Door lock(unlock) relay, ETACM, Sunroof relay HAZARD10Burglar alarm relay, Hazard relay AUDIO10Audio C/LIGHT15Cigarette lighter A/B10SRS control module A/B IND10SRS IND. T/SIG10Hazard switch, Seat belt timer, Instrument cluster, ABS control module, Pre-excitation resistor, Washer motor ECU15ECM, Vehicle speed sensor, TCM, Ignition coil ETACS10ETACM, A/T Shift lever RR WPR10Rear wiper motor, Rear wiper relay START10Start relay FRT WPR20Wiper relay, Washer motor, Wiper & Defogger timer S/HTD15Left (Right) front seat warmer switch P/OUTLET25Front (Rear) power outlet IG210ETACM, Power window relay, Defogger relay, Sunroof relay Head lamp relay, Blower relay O/S MRR10Outside mirror switch, Rear fog lamp relay

Find another relay with an identical part number(maybe the fuel pump relay)& swap it in place of the suspect EEC relay.See if the buzzing quits.If it does,the EEC relay is bad.There might be a ac WOT cutout relay or fan relay with an identical part number that you can use instead of the fuel pump relay.The fuel pump relay & EEC relay will both have to be in place in order for the engine to start.A relay should click when you turn the key on,but it shouldn't make a buzzing noise.BTW-the EEC relay is energized when you turn the key on and then it supplies ignition on power to the computer,injectors,solenoids and fuel pump relay.Therefore, if the EEC relay is defective, these components are Not going to work.If you don't hear the fuel pump prime when the key is first turned on,that's a sign the EEC relay is bad.One of the injector wires should have battery voltage, if the EEC relay is powering up.If your vehicle doesn't have a matching relay to the EEC relay(except for the fuel pump relay)just pull the FP relay out and slide it into place of the suspect EEC relay for testing purposes.If the buzzing noise stops,then replace the relay because there's no way to test if the car will start without having both relays in place.

RL1 Front Wiper Control Relay RL2 ABS Power Relay RL3 Air Suspension Power Relay RL4 Right Heated Front Screen Relay RL5 Left Heated Front Screen Relay RL6 Auxiliary Power 1 Relay RL7 Auxiliary Power 2 Relay RL8 Front Wiper Interval Relay RL9 Horn Relay RL10 Spare Relay RL11 Headlamps Wash/Wipe Relay RL12 Fuel Pump Relay RL13 A/C Condenser Fan 1 Relay RL14 A/C Condenser Fan 2 Relay RL15 Ignition Relay RL16 Starter Relay RL17 ABS Pump Relay RL18 A/C Control Relay RL19 Engine Main Control Relay RL20 Air Suspension Compressor Relay

There are two fuse boxes. A baqttery junction box under the hood on the drivers side and one inside on drivers side. Good luck.

Fuse/Relay

Location

Fuse Amp

Rating

Power Distribution Box

Description

1 60A** I/P Fuse Panel

2 40A** Blower Motor Relay

3 50A** 4 Wheel Anti-Lock Brake System

(4WABS) Module

4 30A** Power Windows, Power Moon

Roof, Power Seat

5 50A** Ignition Switch, Starter Relay

6 20A** Transfer Case Relay

7 - Not Used

8 20A** Air Suspension

9 40A** Air Suspension

10 30A** PCM Power Relay

1 10A* A/C Relay

2 30A* Heated Seats

3 30A* Heated Backlight

4 15A* Fog Lamps and Daytime Running

Lamps

5 4 3 2 1

10 9 8 7 6

12 11 10 9

8 7 6 5

4 3 2 1

15 14 13

2 1 1

9

6

10

8

7

5

4

1

3 2

175

MEGAFUSE

Roadside emergencies

197

Fuse/Relay

Location

Fuse Amp

Rating

Power Distribution Box

Description

5 - Not Used

6 10A* Powertrain Control Module

7 30A* 4 Wheel Anti-Lock System

(4WABS) Module

8 15A* Rear Wiper Motor

9 20A* Fuel Pump Relay and RAP

Module

10 15A* Horn Relay

11 15A* Parklamps Relay and Mainlight

Switch

12 30A* Mainlight Switch and

Multifunction Switch

13 15A* Heated Oxygen Sensor, EGR

Vacuum Regulator, EVR Solenoid,

Camshaft Position (CMP) Sensor,

Canister Vent Solenoid

14 30A* Generator/Voltage Regulator

15 - Not Used

1 - Wiper Park Relay

2 - A/C Relay

3 - Wiper High/Low Relay

4 - PCM Power Relay

5 - Fuel Pump Relay

6 - Starter Relay

7 - Horn Relay

8 - Rear Wipe Down Relay

9 - Blower Motor Relay

10 - Rear Wipe Up Relay

1 - Not Used

1 - DRL Diode
2 - Electronic Engine Controls Diode

Engine compartment fuse/relay box
#24 is starter relay (24 is the starter relay)
#31 is low speed cooling fan relay
#29 is fuel pump relay
#25 is A/C Clutch relay
#23 is blower motor relay
#30 is PCM relay (engine computer)

I/P fuse panel


#34 battery saver relay
#35 Driver's unlock relay
#36 rear defrost relay
#37 interior lamp relay
#38 one touch window down relay
#39 accessory delay relay this should help you out the question with the FOAB-14B192-aa look what number it came out of on fuse box then match it up it will tell you what its for happy holiday

Power is supplied to the Power windows and sunroof through the power window circuit breaker. That circuit breaker is supplied power through the RAP (retained accessory power) Relay, the RAP relay also supplies power to the radio. The RAP relay is also fuse protected by the RAP fuse in the under hood fuse block. The RAP relay is energized by the BCM body control module.

The RAP relay is responsible for the radio and windows working after the igntion is turned off.

The first place to check would be the RAP fuse in the under hood fuse block and then the RAP relay in the Body fuse block.

A list of the BODY relay block located on the left side of the dash to the right of the interior fuse block is below:

(1) Park Lamp Relay (2) Courtesy Lamp Relay (3) Retained Accessory Power (RAP) Relay (4) Power Seats Circuit Breaker (5) Power Windows Circuit Breaker (6) Inadvertent Power Relay (7) Door Lock Relay (8) Headlamp Ground Relay (9) Driver Door Unlock Relay (10) Door Unlock Relay(1) Park Lamp Relay
(2) Courtesy Lamp Relay
(3) Retained Accessory Power (RAP) Relay
(4) Power Seats Circuit Breaker
(5) Power Windows Circuit Breaker
(6) Inadvertent Power Relay
(7) Door Lock Relay
(8) Headlamp Ground Relay
(9) Driver Door Unlock Relay
(10) Door Unlock Relay
(1) Park Lamp Relay (2) Courtesy Lamp Relay (3) Retained Accessory Power (RAP) Relay (4) Power Seats Circuit Breaker (5) Power Windows Circuit Breaker (6) Inadvertent Power Relay (7) Door Lock Relay (8) Headlamp Ground Relay (9) Driver Door Unlock Relay (10) Door Unlock Relay (1) Park Lamp Relay (2) Courtesy Lamp Relay (3) Retained Accessory Power (RAP) Relay (4) Power Seats Circuit Breaker (5) Power Windows Circuit Breaker (6) Inadvertent Power Relay (7) Door Lock Relay (8) Headlamp Ground Relay (9) Driver Door Unlock Relay (10) Door Unlock Relay

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

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P1768 TCM (tranny control module) relay output always off
Okay what it means is that the PCM (engine computer) is not seeing the relay for the TCM
turn on. Can be as simple as a new relay, should be in the fuse panel next to the battery under the hood, switch if you can with another identical relay and see if it makes any difference, If it doesn't then you probaly have a broken wire somewhere in the harness between the PCM/fusebox area on the drivers side .

There are several relays for the A/C system on these. Using the reverse of the lid of the fuse/relay plate box it will show you the positioning of the relays but not the description;

I've added in the description so hopefully will help you!

Relay 9 - Heater blower relay
Relay 10 - Heated rear window relay
Relay 13 - A/C condenser blower motor relay
Relay 14 - A/C compressor clutch relay
Relay 15 - A/C condenser blower motor relay

There is no relay itself for the A/C control, however there are a couple of fuses for this. If you need I can supply you with the fuse position and exact function within the AC system.

Out of curiousity whats the problem with your AC?

Hope this helps