AD83.70-W-6000C | Auxiliary heater (AHE) test of electrical system | 3.12.97 |
MODEL 625.1 /2
with CODE (H11) Hot water auxiliary heater "Eberspächer D1 LC"
with CODE (E06) Electrical system - German road transport regulations for hazardous materials (GGVS)
Auxiliary heater (AHE) diagnosis, previous knowledge | |||
| Auxiliary heater (AHE), location of components | ||
Auxiliary heater diagnostic tools | |||
Connect Hand-Held Tester (HHT) | |||
| Do not carry out measurements at contact points of plug connections with unsuitable equipment (test probes, wire ends etc.). Always use appropriate test cables from connection set (201 589 00 99 00). | ||
| Cables, plug connections and fuses are included in the following tests. The precise area of fault cause (open-circuit, short-circuit to ground, poor contact etc.) must partly be determined by further individual tests together with the currently valid wiring diagram. | ||
| If heater unit is retrofitted and a third party (e.g. drivers, customers) have made alterations / manipulations or non-specialist repairs have been made, the following test program may only be of limited use. The same applies to wiring diagram. | ||
a | On-board voltage 22.5-29.5V (Acid density 1.16) | ||
Test | |||
1 | Generator charging voltage, testing electrical system of AHE | ||
2 | Battery voltage, testing electrical system of AHE | ||
3 | Auxiliary heater control unit overvoltage shutoff, testing electrical system of AHE | ||
4 | Auxiliary heater control unit undervoltage shutoff, testing electrical system of AHE | ||
5 | Open-circuit in metering pump, temperature-controlled cutout, control unit circuit, testing electrical system of AHE | ||
6 | Glow plug, testing electrical system of auxiliary heater | ||
7 | Glow pin, testing electrical system of AHE | ||
8 | Diagnostic cable, testing electrical system of auxiliary heater | ||
9 | Combustion air blower, testing electrical system of AHE | ||
10 | Open-circuit in partial load relay circuit, testing electrical system of AHE | ||
11 | Combustion air blower, testing electrical system of auxiliary heater | ||
12 | Short-circuit to ground in partial load relay, testing electrical system of AHE | ||
13 | Fuel metering pump, testing electrical system of auxiliary heater | ||
14 | Open-circuit in temperature sensor circuit, testing electrical system of AHE | ||
15 | Temperature sensor, testing electrical system of AHE | ||
16 | Open-circuit in auxiliary heater operating unit circuit, testing electrical system of AHE | ||
17 | Short-circuit to ground in auxiliary heater operating unit, testing electrical system of AHE | ||
18 | Open-circuit in flame monitor circuit, testing electrical system of AHE | ||
19 | Short-circuit to ground in flame monitor, testing electrical system of AHE | ||
20 | PTO pressure switch, testing electrical system of power take-off | ||
21 | PTO indicator lamp, testing electrical system of power take-off | ||
22 | Auxiliary heater ON pushbutton, testing electrical system of AHE | ||
23 | Auxiliary heater OFF pushbutton, testing electrical system of AHE | ||
24 | TRS control unit, testing electrical system of AHE | ||
25 | Auxiliary heater indicator lamp, testing electrical system of AHE | ||
26 | Auxiliary heater control unit, testing electrical system of AHE | ||
27 | TRS control unit cables, testing electrical system of AHE | ||
28 | Auxiliary heater relay, testing electrical system of AHE | ||
29 | Short-circuit in auxiliary heater OFF pushbutton, testing electrical system of AHE | ||
30 | Short-circuit in auxiliary heater ON pushbutton, testing electrical system of AHE | ||
31 | Auxiliary heater control unit, TRS control unit, operating unit cables, testing electrical system of AHE | ||
32 | Short-circuit in metering pump, testing electrical system of AHE | ||
33 | Heater unit cables, testing electrical system of AHE | ||
34 | Short-circuit in heater unit, testing electrical system of AHE | ||
35 | Short-circuit in TRS control unit, testing electrical system of AHE | ||
36 | Diodes on diode carrier, testing electrical system of AHE |
Referenced documents
- ad0000w200003a Connecting hand-held tester (HHT), reading fault memory
- ad2645w600001a PTO test of electrical system PTO pressure switch
- ad2645w600002a PTO test of electrical system PTO indicator lamp
- ad8370w200002b Auxiliary heater (AHE) diagnosis tools
- ad8370w2000d Auxiliary heater (AHE) diagnosis previous knowledge
- ad8370w600004a Auxiliary heater (AHE) test of electrical system diagnostic cable
- ad8370w600009a Auxiliary heater (AHE) test of electrical system heating plug
- ad8370w600010b Auxiliary heater (AHE) test of electrical system fuel metering pump
- ad8370w600014a Auxiliary heater (AHE) test of electrical system combustion air blower
- ad8370w600018a AHE test of electrical system generator charge voltage
- ad8370w600019a AHE test of electrical system battery voltage
- ad8370w600020a AHE test of electrical system auxiliary heater control module overvoltage cutoff
- ad8370w600021a AHE test of electrical system auxiliary heater control module undervoltage cutoff
- ad8370w600022b AHE test of electrical system metering pump, temperature circuit breaker, control module open circuit
- ad8370w600025a AHE test of electrical system part load relay open circuit
- ad8370w600026a AHE test of electrical system part load relay short to ground
- ad8370w600029b AHE test of electrical system temperature sensor open circuit
- ad8370w600031a AHE test of electrical system temperature sensor
- ad8370w600033a AHE test of electrical system auxiliary heater operating device open circuit
- ad8370w600034a AHE test of electrical system auxiliary heater operating device short to ground
- ad8370w600035b AHE test of electrical system auxiliary heater control module
- ad8370w600036b AHE test of electrical system flame monitor short to ground
- ad8370w600037b AHE test of electrical system flame monitor open circuit
- ad8370w600038b AHE test of electrical system glow pin
- ad8370w600046b AHE test of electrical system combustion air blower
- ad8370w600055a AHE test of electrical system TRS control module
- ad8370w600056a AHE test of electrical system TRS control module wiring
- ad8370w600057a AHE test of electrical system TRS control module short circuit
- ad8370w600058a AHE test of electrical system auxiliary heater control module, TRS control module, operating device wiring
- ad8370w600059a AHE test of electrical system heater unit wiring
- ad8370w600060a AHE test of electrical system heater unit short circuit
- ad8370w600061b AHE test of electrical system metering pump short circuit
- ad8370w600064a AHE test of electrical system auxiliary heater ON pushbutton
- ad8370w600065a AHE test of electrical system auxiliary heater ON pusbbutton short circuit
- ad8370w600066a AHE test of electrical system auxiliary heater OFF pushbutton
- ad8370w600067a AHE test of electrical system auxiliary heater OFF pushbutton short circuit
- ad8370w600068a AHE test of electrical system auxiliary heater relay
- ad8370w600069a AHE test of electrical system auxiliary heater indicator lamp
- ad8370w600070a AHE test of electrical system diodes at diode carrier
- gf8370w000303d Auxiliary heater (AHE), location of components