Jeep Grand Cherokee WK. Manual — part 414
B210D-BATTERY VOLTAGE LOW
For the Instrument Cluster circuit diagram (Refer to 8 - ELECTRICAL/INSTRUMENT CLUSTER - SCHEMATICS
AND DIAGRAMS).
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
With the ignition on.
•
Set Condition:
The Instrument Cluster detects the a battery voltage of 9.0 volts for 5 seconds.
Possible Causes
VEHICLE CHARGING SYSTEM
INSTRUMENT CLUSTER
Diagnostic Test
1.
CHECK FOR ACTIVE DTC: B210D-BATTERY VOLTAGE LOW
Turn the ignition on.
Apply the vehicle park brake.
Shift the transmission into reverse.
With the scan tool, record and erase Instrument Cluster DTCs.
Wait 30 seconds.
With the scan tool, read Instrument Cluster DTCs.
Is DTC: B210D-BATTERY VOLTAGE LOW active?
Yes
>> Go To 2
No
>> The condition that caused this code to set is not present at this time. Check for an intermittent condition
by inspecting the related wiring harness for chaffed, pierced, pinched, and partially broken wires. Also
inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated termi-
nals.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
2.
VERIFY OPERATION OF THE VEHICLE CHARGING SYSTEM
NOTE: Troubleshoot any PCM charging/cranking DTCs before proceeding.
NOTE: Ensure the battery is fully charged.
Are any charging system DTCs present?
Yes
>> (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING)
No
>> Replace the Instrument Cluster in accordance with the service information.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
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INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS
WK
B211A-IGNITION RUN/ACC/SPAD CONTROL CIRCUIT LOW
WK
INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS
8J - 31
B211A-IGNITION RUN/ACC/SPAD CONTROL CIRCUIT LOW (CONTINUED)
For the Power Door Lock circuit diagram (Refer to 8 - ELECTRICAL/POWER LOCKS - SCHEMATICS AND DIA-
GRAMS)
For a complete wiring diagram Refer to Section 8W.
•
When Monitored:
Continuously
•
Set Condition:
When the Cluster senses a low condition on the (F103) Ignition Run/Acc Relay Control circuit for over 10
seconds, this code will set.
Possible Causes
(F103) IGNITION RUN/ACC/SPAD RELAY CONTROL CIRCUIT LOW
JUNCTION BLOCK
INSTRUMENT CLUSTER
Diagnostic Test
1.
TEST FOR INTERMITTENT CONDITION
With the scan tool, record and erase DTC’s
Operate the door locks several times.
Cycle the ignition from on to off.
Turn the ignition on.
With the scan tool, read DTC’s.
Does the scan tool display B211A-IGNITION RUN/ACC/SPAD CONTROL CIRCUIT LOW?
Yes
>> Go To 2
No
>> The conditions that caused this code to set are not present at this time. Using the wiring diagram/sche-
matic as a guide, inspect the wiring and connectors.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL
MODULES - STANDARD PROCEDURE)
2.
IGNITION RUN/ACC/SPAD RELAY SHORTED
Turn the ignition off.
Disconnect the Cluster C2 connector.
Remove the PDC fuse #13.
Measure the resistance between ground and the (F103) Ignition Run/
ACC/SPAD Relay Control circuit in the Cluster C2 connector
Is the resistance below 1000.0 ohms?
No
>> Replace the Instrument Cluster in accordance with service
information.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8
- ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE)
Yes
>> Go To 3
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INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS
WK
B211A-IGNITION RUN/ACC/SPAD CONTROL CIRCUIT LOW (CONTINUED)
3.
(F103) IGNITION RUN/ACC/SPAD RELAY CONTROL CIRCUIT SHORT TO GROUND
Disconnect the Junction Block C2 connector (on top of junction block).
Measure the resistance between ground and the (F103) Ignition Run/
ACC/SPAD Relay Control circuit in the Cluster C2 connector.
Is the resistance below 1000.0 ohms?
Yes
>> Repair the (F103) Ignition Run/ACC/SPAD Relay Control
circuit for a short to ground.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8
- ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE)
No
>> Replace the Junction Block in accordance with service
information.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8
- ELECTRICAL/ELECTRONIC CONTROL MODULES -
STANDARD PROCEDURE)
WK
INSTRUMENT CLUSTER - ELECTRICAL DIAGNOSTICS
8J - 33
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