(a) Reconfirm DTCs.
HINT
If power management bus DTC U1002 is output from the power management control ECU (Techstream display/Power
Management2), troubleshoot for U1002 and check for malfunctions in the power management main bus circuit.
Result:
B -- GO TO CIRCUITS INDICATED BY OUTPUT DTCS See: U1002
A -- Continue to next step.
2. CHECK CAN BUS WIRE FOR DISCONNECTION (AIR CONDITIONING AMPLIFIER BRANCH WIRE)
(a) Turn the engine switch off.
(b) Disconnect the air conditioning amplifier connector.
Text in Illustration
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
NG -- REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (AIR CONDITIONING AMPLIFIER
BRANCH WIRE)
OK -- Continue to next step.
3. CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL)
(a) Turn the engine switch on (IG).
(b) Measure the voltage according to the value(s) in the table below.
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