Stratus Sedan L4-2.4L VIN X (2003)
3. All of the VFD segments will illuminate for 24 seconds. Check for segments that do not illuminate or illuminate all the time.
4. When the self-check is complete the CMTC will display one of the following five messages:
-
F (FAIL)
-
P (PASS)
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Bus (No PCI bus communication)
-
Bus 1 (No PCM bus messages received)
-
Bus 2 (No BCM bus messages received)
5. To exit the self-check mode, depress the STEP button or cycle the ignition switch and the CTM will return to normal operation.
If a Bus fault is displayed, refer to the symptom list. If an F is displayed, the CMTC must be replaced. The CMTC will not display an F for a VF
segment that does not illuminate.
Ambient Temperature Sensor
The outside temperature function is supported by the ambient temperature sensor (ATS), a signal and ground circuit hardwired to the PCM, the BCM,
and the CMTC display.
If the CMTC display indicates 60 °C (140 °F) or the ATS sense circuit is shorted to ground, the temp display will be 60 °C (140 °F) to indicate a
SHORT circuit condition.
If the CTM display indicates -45 °C (-49 °F) or the ATS sense circuit is open, the temp display will be -45 °C (-49 °F) to indicate an OPEN circuit
condition. If there is an OPEN or SHORT circuit condition, it must be repaired before the CMTC VFD can be tested.
The ATS is supported by the PCM. ATS fault DTC's will be recorded in the PCM. The ATS can be diagnosed using the following Sensor Test. Test
the ATS circuits using the diagnostics in the Body Diagnostic Procedures. If the ATS, the circuits, and PCI bus communications are confirmed to be
OK, but the CMTC temperature display is inoperative or incorrect, replace the CMTC.
Ambient Temperature Sensor Test
1. Turn the ignition OFF.
2. Disconnect the ATS harness connector.
3. Measure the resistance of the ATS using the following min/max values:
TEMPERATURE
SENSOR RESISTANCE
0 °C (32 °F)
29.33 - 35.99 Kilohms
10 °C(50 °F)
17.99 - 21.81 Kilohms
20 °C (68 °F)
11.37 - 13.61 Kilohms
25 °C (77 °F)
9.12 - 10.86 Kilohms
30 °C (86 °F)
7.37 - 8.75 Kilohms
40 °C (104 °F)
4.90 - 5.75 Kilohms
The sensor resistance should read between these min/max values. If the resistance values are no OK, replace the Sensor.
Door Ajar System
DOOR AJAR SYSTEM
The door ajar and decklid ajar states are used as inputs for the Body Control Module (BCM). The BCM uses these inputs to determine exactly what
position the doors and decklid are in. The DRBIII(R) will display the state of the door ajar and the decklid ajar switches in Inputs/Outputs. It's
important to note, that when any door, or the decklid is closed, the switch state on the DRBIII(R) will show OPEN. When any door, or the decklid is
open the switch state on the DRBIII(R) will show CLOSED. During diagnosis, if a door or the decklid is closed and the DRBIII(R) displays the switch
state as CLOSED, it indicates a shorted ajar circuit. If the door or the decklid is open and the DRBIII(R) displays the switch state as OPEN, it
indicates an open ajar circuit.
Exterior Lighting System
EXTERIOR LIGHTING SYSTEM
Headlamp Delay
The headlamp time delay operates when the ignition switch is turned off while the headlamps are still on, and the headlamps are then turned off within
45 seconds after the ignition is off. This will provide a 90-second time delay before turning off the headlamps.
Heating & A/C System
HEATING AND A/C SYSTEM
