C2100–BATTERY VOLTAGE LOW

For a complete wiring diagram Refer to Section 8W

When Monitored:
Continuously.
Set Condition:
The All Wheel Drive Control Module detects that system voltage is below 8.0 volts for 10 seconds.

Possible Causes

CHARGING SYSTEM DTCS PRESENT

(F202) IGNITION SWITCH OUTPUT (RUN/START) CIRCUIT OPEN OR HIGH RESISTANCE

(A923) FUSED B(+) CIRCUIT OPEN OR HIGH RESISTANCE

(Z967) GROUND CIRCUIT OPEN OR HIGH RESISTANCE

ALL WHEEL DRIVE (AWD) CONTROL MODULE

TOTALLY INTEGRATED POWER MODULE (TIPM)

Diagnostic Test

1.CHARGING SYSTEM DTCS PRESENT

Are there any Charging System or related voltage DTCs present?

Yes

Refer to the symptom list and perform any Charging System DTC diagnostic procedures before continuing with this test.

Go to 2

2.CHECK FOR ACTIVE DTC

Is the DTC active at this time?

Yes

Go to 3

Go to 10

3.CHECK THE TIPM FUSED B(+) VOLTAGE

Is the voltage above 8 volts?

Yes

Go to 4

Go to 9

4.CHECK THE TIPM IGNITION SWITCH OUTPUT RUN/START VOLTAGE

Is the voltage above 8 volts?

Yes

Go to 5

Go to 9

5.(A923) FUSED B(+) CIRCUIT OPEN OR HIGH RESISTANCE

NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery.

Does the test light illuminate brightly?

Yes

Go to 6

Repair the (F202) Ignition Switch Output (RUN/START) circuit for an open circuit or high resistance.
Perform AWD Control Module VERIFICATION TEST. (Refer to 3 - DIFFERENTIAL & DRIVELINE/ELECTRONICALLY CONTROLLED CLUTCH - STANDARD PROCEDURE).

6.(F202) IGNITION SWITCH OUTPUT (RUN/START) CIRCUIT OPEN OR HIGH RESISTANCE

NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery.

Does the test light illuminate brightly?

Yes

Go to 7

Repair the (F202) Ignition Switch Output (RUN/START) circuit for an open circuit or high resistance.
Perform AWD Control Module VERIFICATION TEST. (Refer to 3 - DIFFERENTIAL & DRIVELINE/ELECTRONICALLY CONTROLLED CLUTCH - STANDARD PROCEDURE).

7.(Z967) GROUND CIRCUIT OPEN OR HIGH RESISTANCE

NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery.

Does the test light illuminate brightly?

Yes

Go to 8

Repair the (Z967) Ground circuit for an open circuit or high resistance.
Perform AWD Control Module VERIFICATION TEST. (Refer to 3 - DIFFERENTIAL & DRIVELINE/ELECTRONICALLY CONTROLLED CLUTCH - STANDARD PROCEDURE).

8.AWD CONTROL MODULE

NOTE: Before continuing, check the AWD Module harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary.

Were any problems found?

Repair

Replace the AWD Control Module in accordance with the Service information.
Perform AWD Control Module VERIFICATION TEST. (Refer to 3 - DIFFERENTIAL & DRIVELINE/ELECTRONICALLY CONTROLLED CLUTCH - STANDARD PROCEDURE).

9.TOTALLY INTEGRATED POWER MODULE

NOTE: Before continuing, check the TIPM harness connector terminals for corrosion, damage, or terminal push out. Repair as necessary.

Were any problems found?

Repair

Replace the Totally Integrated Power Module in accordance with the Service Information.
Perform AWD Control Module VERIFICATION TEST. (Refer to 3 - DIFFERENTIAL & DRIVELINE/ELECTRONICALLY CONTROLLED CLUTCH - STANDARD PROCEDURE).

10.INTERMITTENT WIRING AND CONNECTORS

Were there any problems found?

Yes

Repair as necessary.
Perform AWD Control Module VERIFICATION TEST. (Refer to 3 - DIFFERENTIAL & DRIVELINE/ELECTRONICALLY CONTROLLED CLUTCH - STANDARD PROCEDURE)

Test Complete.