| Description |

| Inspection |
| 1. |
There should be continuity between the No.15 and No.7 terminals when
power and ground are connected to the No.15 and No.14 in the ICM-A.
|
| 2. |
There should be continuity between the No.10 and No.12 terminals when
power and ground are connected to the No.15 and No.14 in the ICM-A.
|
| 1. |
There should be continuity between the No.11 and No.12 terminals when
power and ground are connected to the No.11 and No.1 in the ICM-A.
|
| 2. |
There should be continuity between the No.10 and No.7 terminals when
power and ground are connected to the No.11 and No.1 in the ICM-A.
|
Description and operation Dscription and Operation ICU (Integrated Central Control Unit) ICU (Integrated Central Control Unit) is an integrated model of smart junction block and central gateway.
Repair procedures Replacement 1. Disconnect the negative (-) battery terminal. 2. Remove the heater and blower assembly. (Refer to Heater - "Heater Unit") 3.
Description and operation Description The PTC (Positive Temperature Coefficient) heater is installed at the exit or the backside of the heater core. The PTC heater is an electric heater using a PTC element as an auxiliary heating device that supplements deficiency of interior heat source in highly effective diesel engi