DTC B1334 Passenger Control Assembly Out Of Range. Buick Park Avenue 1998

For 1990-2009 cars only

Makes 🢒 Buick 🢒 1998 🢒 Park Avenue 🢒 HVAC 🢒 HVAC Systems - Automatic 🢒 DTC B1334 Passenger Control Assembly Out Of Range

HVAC Components
Cell 68: Temperature Controls
HVAC Air Delivery/Temperature Control Schematics
Handling ESD Sensitive Parts Notice
Handling ESD Sensitive Parts Notice

Circuit Description

The passenger temperature control assembly receives voltage signals from the heater and A/C programmer. The signal voltage will vary from 5 volts (open circuit) to 0 volts (closed circuit).

Conditions for Setting the DTC

•	The ignition is on.

•	The circuit is open or shorted.

Action Taken When the DTC Sets

Code B1334 is set.

Conditions for Clearing the DTC

•	Use a Scan Tool .

•	A history DTC will clear after 50 consecutive ignition cycles have occurred without a malfunction.

•	SBM battery voltage is interrupted.

Test Description

Perform the Body Control Module (BCM) Diagnostic System Check before continuing with the diagnosis of this DTC.

This step determines if the passenger temperature control is operating properly.

This step ensures that the DTC was not set in error.

Step	Action	Value(s)	Yes	No
1	Did you perform the BCM Diagnostic System Check?	--	Go to Step 2	Go to Diagnostic System Check - Body Control System in Body Control System
2	Turn the ignition switch to the OFF position. Disconnect the passenger temperature control assembly. Measure the resistance between the passenger temperature control assembly connector terminal 8 and terminal 10 while moving the control knob to the Full Cold, the MID Range, and the Full Hot settings. Refer to Probing Electrical Connectors in Wiring Systems. Are the resistances near the specified ranges?	Full Cold - 1 kohms MID - 5 kohms Full Hot - 9 kohms	Go to Step 3	Go to Step 7
3	Turn the ignition switch to the ON position. Measure the voltage between the passenger temperature control assembly harness connector terminal 8 and terminal 10. Refer to Measuring Voltage in Wiring Systems. Does the voltage measure near the specified value?	5 V	Go to Step 4	Go to Step 5
4	Turn the ignition switch to the OFF position. Reconnect the passenger temperature control assembly. Turn the ignition switch to the ON position. Use a Scan Tool in order to clear the DTC. Cycle the ignition switch from the ON position to the OFF position several times. Did the DTC reset?	--	Go to Step 9	Go to Intermittents and Poor Connections
5	Test for continuity between the passenger temperature control assembly harness connector terminal 8 and the heater and A/C programmer connector terminal C15. Is the specified continuity present?	5 V	Go to Step 8	Go to Step 6
6	Repair the open in CKT 1812 (TAN). Refer to Wiring Repairs in Wiring Systems. Is the repair complete?	--	Go to Diagnostic System Check - Body Control System in Body Control System	--
7	Replace the passenger temperature control assembly. Refer to Control Assembly Replacement . Is the replacement complete?	--	Go to Diagnostic System Check - Body Control System in Body Control System	--
8	Repair an open in CKT 831 (DK BLU/WHT). Refer to Wiring Repairs in Wiring Systems. Is the repair complete?	--	Go to Diagnostic System Check - Body Control System in Body Control System	--
9	Inspect inline connector C204 for proper terminal contact. Refer to Intermittents and Poor Connections . If the terminal contact is OK, replace the heater and A/C programmer. Refer to Programmer Replacement . Is the repair complete?	--	Go to Diagnostic System Check - Body Control System in Body Control System	--