B127A-COMPASS PERFORMANCE

For a complete wiring diagram Refer to Section 8W.

When Monitored:
With the ignition on.
Set Condition:
Compass performance.

Possible Causes

(F921) FUSED RUN RELAY OUTPUT CIRCUIT OPEN

(Z916) GROUND CIRCUIT OPEN

COMPASS MODULE

CLUSTER

Diagnostic Test

1. CHECK FOR AN ACTIVE DTC

NOTE: Remove any electronic devices (laptop computers, cell phones) from the instrument panel.

NOTE: Before proceeding, check the compass variance and calibration in accordance with the service information.

Turn the ignition on.
With the scan tool, record and erase DTCs.
Wait 30 seconds.
With the scan tool, read DTCs.

Does the scan tool display this DTC as 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 chafed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)

2. (F921) FUSED RUN RELAY OUTPUT CIRCUIT OPEN

Measure the voltage of the (F921) Fused Run Relay Output circuit for an open.

Is the voltage above 10 volts?

Yes

Go To 3

No

Repair the (F921) Fused Run Relay Output circuit for an open.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)

3. (Z916) GROUND CIRCUIT OPEN

Measure the resistance of the (Z916) Ground circuit for an open.

Is the resistance above 10K ohms?

Yes

Repair the (Z916) Ground circuit for an open.

Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)

No

Replace the Compass Module in accordance with the service information.
Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)