B16F9–FRONT LEFT FOG LAMP CONTROL CIRCUIT HIGH

For a complete wiring diagram Refer to Section 8W.

When Monitored:
Continuously.
Set Condition:
When the Totally Integrated Power Module (TIPM) detects a HIGH condition.

Possible Causes

CHECK (Z904) GROUND CIRCUIT

(Z904) GROUND CIRCUIT OPEN

CHECK (L89) FRONT LEFT FOG LAMP CONTROL CIRCUIT

(L89) FRONT LEFT FOG LAMP CONTROL CIRCUIT OPEN

(L89) FRONT LEFT FOG LAMP CONTROL CIRCUIT SHORTED TO VOLTAGE

FRONT LEFT FOG LAMP BULB

TOTALLY INTEGRATED POWER MODULE

Diagnostic Test

1. INTERMITTENT CONDITION

Turn the ignition on.
With the scan tool, clear all DTC's.
Turn the Front Fog Lamps on.
With the scan tool, read DTC's.

Does the scan tool display active: B16F9–FRONT LEFT FOG LAMP CONTROL CIRCUIT HIGH?

Yes

Go To 2

No

The condition that caused this symptom is currently not present. 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. Repair as necessary.
Perform the BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)

2. CHECK (Z904) GROUND CIRCUITS

Disconnect the Front Left Fog Lamp harness connector.
With a 12–volt test light connected to 12–volts, probe each (Z904) Ground circuit.

Does the test light illuminate brightly on each ground circuit?

Yes

Go To 4

No

Go To 3

3. (Z904) GROUND CIRCUIT OPEN

Measure the resistance of the appropriate (Z904) Ground circuit(s) at the Front Left Fog Lamp harness connector.

Is the resistance below 10.0 ohms?

Yes

Replace the Inoperative bulb in accordance with the Service Information.

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

No

Repair the appropriate (Z904) Ground circuit(s) for an open.
Perform the BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)

4. CHECK (L89) FRONT LEFT FOG LAMP CONTROL CIRCUIT

Turn the ignition on.
With a 12–volt test light connected to ground, check the (L89) Front Left Fog Lamp Control circuit.

Does the test light illuminate brightly with the fog lamp switch turned on, and shut off with the fog lamps turned off?

Yes

Replace the Inoperative bulb in accordance with the Service Information.

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

No

Go To 5

5. (L89) FRONT LEFT FOG LAMP CONTROL CIRCUIT OPEN

Turn the ignition off.
Disconnect the TIPM C4 harness connector.
Measure the resistance between the (L89) Front Left Fog Lamp Control circuit and the Front Left Fog Lamp harness connector to the TIPM C4 connector.

Is the resistance below 10.0 ohms?

Yes

Go To 6

No

Repair the (L89) Front Left Fog Lamp Control circuit for an open.
Perform the BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)

6. (L89) FRONT LEFT FOG LAMP CONTROL CIRCUIT SHORTED TO VOLTAGE

Turn the ignition on.
Measure the voltage of the (L89) Front Left Fog Lamp Control circuit.

Is there any voltage present?

Yes

Repair the (L89) Front Left Fog Lamp Control circuit for a short to voltage.

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

No

Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information.
Perform the BODY VERIFICATION TEST - VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE)