Jeep Liberty KJ. Manual — part 137

Possible Causes

(A908) FUSED B+ CIRCUIT OPEN

(F942) FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN

(Z13) GROUND CIRCUIT OPEN

ELECTRONIC VEHICLE INFORMATION CENTER

Diagnostic Test

1.

(A908) FUSED B+ CIRCUIT OPEN

NOTE: Diagnose and repair any BCM, MIC, PCM, or COMMUNICA-
TION DTCs before proceeding.
Turn the ignition off.

Disconnect the Overhead Console harness connector.

Measure the voltage between the (A908) Fused B+ circuit and ground.

Is the voltage above 10.5 volts?

Yes

>> Go To 2

No

>> Repair the (A908) Fused B(+) circuit for an open.

Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC

CONTROL

MODULES

-

STANDARD PROCEDURE)

2.

(F942) FUSED IGNITION SWITCH OUTPUT CIRCUIT OPEN

Turn the ignition off.

Disconnect the Overhead Console harness connector.

Turn the ignition on.

Measure the voltage between the (F942) Fused Ignition Switch Output
circuit and ground.

Is the voltage below 10.5 volts?

Yes

>> Repair the (F942) Fused Ignition Switch Output circuit for

an open.

Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC

CONTROL

MODULES

-

STANDARD PROCEDURE)

No

>> Go To 3

8M - 10

OVERHEAD CONSOLE - ELECTICAL DIAGNOSTICS

KJ

3.

(Z13) GROUND CIRCUIT OPEN

Turn the ignition off.

Disconnect the Overhead Console harness connector.

Measure the resistance between ground and the (Z13) EVIC ground cir-
cuit.

Is the resistance above 5.0 ohms?

Yes

>> Repair the (Z13) Ground circuit for an open.

Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC

CONTROL

MODULES

-

STANDARD PROCEDURE)

No

>> Replace the EVIC in accordance with the Service Informa-

tion.

Perform BODY VERIFICATION TEST - VER 1. (Refer to 8 -
ELECTRICAL/ELECTRONIC

CONTROL

MODULES

-

STANDARD PROCEDURE)

KJ

OVERHEAD CONSOLE - ELECTICAL DIAGNOSTICS

8M - 11

*ANY SWITCH ON EVIC INOPERATIVE

For a complete wiring diagram Refer to Section 8W.

Possible Causes

ELECTRONIC VEHICLE INFORMATION CENTER

Diagnostic Test

1.

ELECTRONIC VEHICLE INFORMATION CENTER

NOTE: Diagnose and repair any BCM, MIC, WCM, PCM, or COMMUNICATION DTCs before proceeding

If all the possible causes above are operating correctly, view repair.

Repair

Replace the EVIC in accordance with the Service Information.

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

8M - 12

OVERHEAD CONSOLE - ELECTICAL DIAGNOSTICS

KJ

*AVERAGE MILES/GAL INOPERATIVE OR WRONG

For a complete wiring diagram Refer to Section 8W.

Possible Causes

ELECTRONIC VEHICLE INFORMATION CENTER

Diagnostic Test

1.

ELECTRONIC VEHICLE INFORMATION CENTER

NOTE: Diagnose and repair any BCM, MIC, WCM, PCM, or COMMUNICATION DTCs before proceeding

NOTE: Average Miles/Gal is calculated in the BCM. The EVIC only displays this information.

If all the possible causes above are operating correctly, view repair.

Repair

Replace the EVIC in accordance with the Service Information.

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

KJ

OVERHEAD CONSOLE - ELECTICAL DIAGNOSTICS

8M - 13