Message Systems
B1034-INFRARED TEMPERATURE SENSOR INPUT CIRCUIT LOWB1034 - Infrared Temperature Sensor Input Circuit Low:
WHEN MONITORED
With the ignition on.
SET CONDITION
The Compass Temperature Module detects a short to ground condition on the (C83) Infrared Sensor Signal circuit.
POSSIBLE CAUSES
- (C83) Infrared sensor signal circuit shorted to ground
- Infrared temperature sensor
- Compass temperature module
Diagnostic Test
1. TEST FOR AN INTERMITTENT CONDITION
Turn the ignition on.
With the scan tool, record and erase DTCs.
Turn the ignition off, wait 10 seconds then turn the ignition on.
With the scan tool, read DTCs.
Q: Does the scan tool display: B1034 - INFRARED TEMPERATURE SENSOR INPUT CIRCUIT LOW?
YES: Go To 2
NO: The condition that caused this code to set is not present at this time. Using the wiring diagram as a guide, inspect the wiring and connectors for an intermittent condition. Operate the system several times and recheck for active DTCs. Perform the BODY VERIFICATION TEST-VER 1. Body Verification Test
2. CHECK FOR ACTIVE DTC B1034 - INFRARED TEMPERATURE SENSOR INPUT CIRCUIT LOW WITH INFRARED SENSOR DISCONNECTED
Turn the ignition off.
Disconnect the Infrared Temperature Sensor harness connector.
Turn the ignition on.
With the scan tool, read DTCs.
Q: Does the scan tool display B1034: INFRARED TEMPERATURE SENSOR INPUT CIRCUIT LOW?
YES: Go To 3
NO: Replace the Infrared Temperature Sensor. Perform the BODY VERIFICATION TEST-VER 1. Body Verification Test
3. CHECK (C83) INFRARED SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND
Turn the ignition off.
Disconnect the Compass Temperature Module harness connector.
Measure the resistance between the (C83) Infrared Sensor Signal circuit and ground.
Q: Is the resistance below 10K ohms?
YES: Repair the (C83) Infrared Sensor Signal circuit for a short to ground. Perform the BODY VERIFICATION TEST-VER 1. Body Verification Test
NO: Replace the Compass Temperature Module. Perform the BODY VERIFICATION TEST-VER 1. Body Verification Test