Jeep Grand Cherokee

Make sure of operation of stoplights at squeezing of a pedal of a brake. If stoplights do not light up at pedal squeezing, check up a condition of a safety lock and lamps of signals (the Head System of an onboard electric equipment), then again check up gauge-switch functioning. If after entering of corrections stoplights on the former do not work, try to make gauge-switch adjustment. Again repeat check. If gauge-switch adjustment has not helped, make sure available on plugs of the switch of a food (electric schemes in the end of the Head System of an onboard electric equipment see). If a food is present, whether check up it takes a place on plugs of feeding conducting of lamps of stoplights. The faulty switch replace. If to achieve satisfactory operation of stoplights it is not possible despite that the gauge-switch is perfectly in order, try to find short circuit or breakage in conducting between the switch and lamps of stoplights.

First of all spend all external checks described in the previous subsection (a safety lock, lamps, a food on the switch, pressure between the switch and lamps, etc.). If to eliminate refusal it was not possible, remove the gauge-switch, disunite its electric socket, then establish the switch on a place (see more low) and by means of an ohmmeter or a tester of breakages check up a continuity between plugs 5 and 6 sockets, for what:
For full length take плунжер the gauge-switch. Connect ohmmeter wires between the mentioned plugs and consider instrument readings. If the continuity is absent, pass to the following check. If takes place, - replace the gauge-switch (in it breakage or short circuit takes place).

The scheme of identification of plugs of a socket of the gauge-switch (model 1993 and 1994 вып.)

By means of an ohmmeter or a tester of breakages check up a continuity between plugs 1 and 2, then 3 and 4:
Against the stop press плунжер in the gauge-switch. Connect ohmmeter wires between plugs 1 and 2 sockets and consider instrument readings. If the continuity is present, the switch is perfectly in order. If is not present, - replace it (in it breakage or short circuit takes place). Repeat check for plugs 3 and 4.

Disconnect a negative wire from the battery. Uncover a steering column and the bottom panel of an upholstery under the panel of devices (the Head the Body).

Disunite an electric socket of the gauge-switch. Turn out the gauge-switch from the holder or, having shaken upwards-downwards, extend from the holder back. Screw the new gauge-switch, completely having planted it in the holder so that плунжер has rested against a brake pedal. Connect an electric socket. Make gauge-switch adjustment.

Against the stop squeeze out a brake pedal. Turn the gauge-switch approximately on 30 counter-clockwise to отпускания a clamp, then, having pulled back, take the switch from an arm. Disunite an electric socket and remove the gauge-switch. For full length take плунжер from the gauge-switch. Connect an electric socket. Squeeze out a pedal against the stop and keep it in this position. Combine a lock uvula of the gauge-switch with a reciprocal groove in an arm and insert the switch into an arm, having turned for fixing on 30 clockwise. Release a pedal of a brake and completely delay it back. It will allow плунжеру to occupy the gauge-switch correct working position at вталкивании its pedal in the switch case. During automatic adjustment the gauge-switch should publish clicks.

Establish into place the panel of an upholstery and a cover of a steering column (the Head the Body). Connect a wire to the negative plug of the battery Test gauge-switch functioning.

Manually translate a brake pedal forward and check up functioning плунжера the gauge-switch (useful there will be an application of a pocket small lamp and a small pocket mirror). Плунжер should remain in completely extended position when the pedal free wheeling will be chosen and car braking will begin. The backlash between a head плунжера and a pedal in this point should make from 1,6 to 3,2 mm. If a backlash between плунжером the gauge-switch and a pedal in norm, and stoplights join regularly, adjustment is not required. If плунжер the switch the backlash between плунжером and a pedal below norm is not completely put forward from the case, i.e., make adjustment, for what:
Grasp a pedal of a brake and delay it back against the stop. The pedal should concern the switch cylinder, push it back in a clip and fix in correct position. Again measure a backlash between плунжером and a pedal. In case of need repeat procedure
Test gauge-switch functioning.