Front heated seats (HS), diagnosis, troubleshooting · ad9130p5000a · Mercedes-Benz WIS

AD91.30-P-5000A

Front heated seats (HS), diagnosis, troubleshooting

19.3.97

MODEL 170,
202 as of 1.9.95,
208,
210 up to 30.6.99 with CODE (873) Electrically heated left and right front seats

MODEL 210 as of 1.7.99
with CODE (873) Electrically heated left and right front seats
except CODE (401a) Front seat ventilation

	Front heated seats (HS) diagnosis, previous knowledge		AD91.30-P-2000A
	Troubleshooting
Complaint	Possible cause	Notes	Remedy/test step
Complete front heated seats, left and right, inoperative	Front HS control module (N25/5), Voltage supply		AD91.30-P-6000-01A
Left front seat heated cushions and backrest heated cushions inoperative	Front HS control module (N25/5), Power supply Left front seat heated cushion (R13/1) and left front backrest heated cushion (R13/2)		AD91.30-P-6000-01A AD91.30-P-6000-05A AD91.30-P-6000-06A
Right front seat heated cushions and backrest heated cushions inoperative	Front HS control module (N25/5), Power supply Right front seat heated cushion (R13/3) and right front backrest heated cushion (R13/4)		AD91.30-P-6000-01A AD91.30-P-6000-07A AD91.30-P-6000-08A
Indicator lamps in left front heated seat (HS) switch (N25/5s1) or in right front heated seat (HS) switch (N25/5s2) inoperative Seat heater works	N25/5s1 indicator lamps N25/5s2 indicator lamps		Front HS control module (N25/5) Front HS control module (N25/5)
Indicator lamps in left front heated seat (HS) switch (N25/5s1)/right front heated seat (HS) switch (N25/5s2) do not dim	N25/5s1 dimming N25/5s2 dimming		AD91.30-P-6000-02A AD91.30-P-6000-03A AD91.30-P-6000-04A AD91.30-P-6000-02A AD91.30-P-6000-03A AD91.30-P-6000-04A
Illumination in left front heated seat (HS) switch (N25/5s1)/right front heated seat (HS) switch (N25/5s2) does not function	N25/5s1 Illumination N25/5s2 Illumination		AD91.30-P-6000-02A AD91.30-P-6000-03A AD91.30-P-6000-04A Front HS control module (N25/5)

Referenced documents

ad9130p2000a Front heated seats (HS) diagnosis previous knowledge
ad9130p600001a Front HS test of electrical system front heated seat control module circuit 30 and 15R
ad9130p600002a Front HS test of electrical system front heated seat control module circuit 58d
ad9130p600003a Front HS test of electrical system cockpit switch group, circuit 58d
ad9130p600004a Front HS, test of electrical system, cockpit switch group, circuit 31
ad9130p600005a Front HS test of electrical system front left seat heated cushion and front left backrest heated cushion
ad9130p600006a Heater pad for seat at the front left, checking electrical components for the seat heater at the front
ad9130p600007a Front HS, test of electrical system, front right seat heated cushion and front right backrest heated cushion
ad9130p600008a Front HS test of electrical system front right seat heated cushion